Python os.pathsep() Examples

def save_pyoptix_conf(nvcc_path, compile_args, include_dirs, library_dirs, libraries):
    try:
        config = ConfigParser()
        config.add_section('pyoptix')

        config.set('pyoptix', 'nvcc_path', nvcc_path)
        config.set('pyoptix', 'compile_args', os.pathsep.join(compile_args))
        config.set('pyoptix', 'include_dirs', os.pathsep.join(include_dirs))
        config.set('pyoptix', 'library_dirs', os.pathsep.join(library_dirs))
        config.set('pyoptix', 'libraries', os.pathsep.join(libraries))

        tmp = NamedTemporaryFile(mode='w+', delete=False)
        config.write(tmp)
        tmp.close()
        config_path = os.path.join(os.path.dirname(sys.executable), 'pyoptix.conf')
        check_call_sudo_if_fails(['cp', tmp.name, config_path])
        check_call_sudo_if_fails(['cp', tmp.name, '/etc/pyoptix.conf'])
        check_call_sudo_if_fails(['chmod', '644', config_path])
        check_call_sudo_if_fails(['chmod', '644', '/etc/pyoptix.conf'])
    except Exception as e:
        print("PyOptiX configuration could not be saved. When you use pyoptix.Compiler, "
              "nvcc path must be in PATH, OptiX library paths must be in LD_LIBRARY_PATH, and pyoptix.Compiler "
              "attributes should be set manually.") 

def _get_cmd_output(cmd, delim, expected_len):
    ''' Verify if command exists and return output '''
    if not any(os.access(os.path.join(path, cmd[0]), os.X_OK) for path in os.environ['PATH'].split(os.pathsep)):
        api.current_logger().warning("'%s': command not found" % cmd[0])
        raise StopIteration

    try:
        # FIXME: Will keep call to subprocess until our stdlib supports "env" parameter
        # when there is any fd except 0,1,2 open, lvm closes the fd and prints a warning.
        # In our case /dev/urandom has other fd opened, probably for caching purposes.
        output = subprocess.check_output(cmd, env={'LVM_SUPPRESS_FD_WARNINGS': '1', 'PATH': os.environ['PATH']})

    except subprocess.CalledProcessError as e:
        api.current_logger().debug("Command '%s' return non-zero exit status: %s" % (" ".join(cmd), e.returncode))
        raise StopIteration

    for entry in output.split('\n'):
        entry = entry.strip()
        if not entry:
            continue

        data = entry.split(delim)
        data.extend([''] * (expected_len - len(data)))

        yield data 

def _find_executable(executable, path=None):
    """Tries to find 'executable' in the directories listed in 'path'.

    A string listing directories separated by 'os.pathsep'; defaults to
    os.environ['PATH'].  Returns the complete filename or None if not found.
    """
    if path is None:
        path = os.environ['PATH']

    paths = path.split(os.pathsep)
    base, ext = os.path.splitext(executable)

    if (sys.platform == 'win32' or os.name == 'os2') and (ext != '.exe'):
        executable = executable + '.exe'

    if not os.path.isfile(executable):
        for p in paths:
            f = os.path.join(p, executable)
            if os.path.isfile(f):
                # the file exists, we have a shot at spawn working
                return f
        return None
    else:
        return executable 

def find_executable(executable, path=None):
    """Tries to find 'executable' in the directories listed in 'path'.

    A string listing directories separated by 'os.pathsep'; defaults to
    os.environ['PATH'].  Returns the complete filename or None if not found.
    """
    if path is None:
        path = os.environ['PATH']
    paths = path.split(os.pathsep)
    base, ext = os.path.splitext(executable)

    if (sys.platform == 'win32' or os.name == 'os2') and (ext != '.exe'):
        executable = executable + '.exe'

    if not os.path.isfile(executable):
        for p in paths:
            f = os.path.join(p, executable)
            if os.path.isfile(f):
                # the file exists, we have a shot at spawn working
                return f
        return None
    else:
        return executable 

def _iscommand(cmd):
    """Return True if cmd is executable or can be found on the executable
    search path."""
    if _isexecutable(cmd):
        return True
    path = os.environ.get("PATH")
    if not path:
        return False
    for d in path.split(os.pathsep):
        exe = os.path.join(d, cmd)
        if _isexecutable(exe):
            return True
    return False


# General parent classes 

def _popen(command, args):
    import os
    path = os.environ.get("PATH", os.defpath).split(os.pathsep)
    path.extend(('/sbin', '/usr/sbin'))
    for dir in path:
        executable = os.path.join(dir, command)
        if (os.path.exists(executable) and
            os.access(executable, os.F_OK | os.X_OK) and
            not os.path.isdir(executable)):
            break
    else:
        return None
    # LC_ALL to ensure English output, 2>/dev/null to prevent output on
    # stderr (Note: we don't have an example where the words we search for
    # are actually localized, but in theory some system could do so.)
    cmd = 'LC_ALL=C %s %s 2>/dev/null' % (executable, args)
    return os.popen(cmd) 

def find_command(cmd, paths=None, pathext=None):
    """Searches the PATH for the given command and returns its path"""
    if paths is None:
        paths = os.environ.get('PATH', '').split(os.pathsep)
    if isinstance(paths, string_types):
        paths = [paths]
    # check if there are funny path extensions for executables, e.g. Windows
    if pathext is None:
        pathext = get_pathext()
    pathext = [ext for ext in pathext.lower().split(os.pathsep) if len(ext)]
    # don't use extensions if the command ends with one of them
    if os.path.splitext(cmd)[1].lower() in pathext:
        pathext = ['']
    # check if we find the command on PATH
    for path in paths:
        # try without extension first
        cmd_path = os.path.join(path, cmd)
        for ext in pathext:
            # then including the extension
            cmd_path_ext = cmd_path + ext
            if os.path.isfile(cmd_path_ext):
                return cmd_path_ext
        if os.path.isfile(cmd_path):
            return cmd_path
    raise BadCommand('Cannot find command %r' % cmd) 

def which(program, fail=True):
    """ Sort of replicates the `which` utility.
    """
    is_exe    = lambda fp: os.path.isfile(fp) and os.access(fp, os.X_OK)
    locations = [os.path.join(path, program) for path in os.environ["PATH"].split(os.pathsep)]
    found     = [loc for loc in locations if is_exe(loc)]

    if not found:
        if not fail:
            return False
        else:
            raise RuntimeError("Did not find program: <{0}>".format(program))
    elif len(found) > 1:
        if not fail:
            return False
        else:
            raise RuntimeError("Found more than one instance of the program:\n"
                               "{0}".format('\n'.join(found)))
    else:
        return found[0] 

def _build_paths(self, name, spec_path_lists, exists):
        """
        Given an environment variable name and specified paths,
        return a pathsep-separated string of paths containing
        unique, extant, directories from those paths and from
        the environment variable. Raise an error if no paths
        are resolved.
        """
        # flatten spec_path_lists
        spec_paths = itertools.chain.from_iterable(spec_path_lists)
        env_paths = safe_env.get(name, '').split(os.pathsep)
        paths = itertools.chain(spec_paths, env_paths)
        extant_paths = list(filter(os.path.isdir, paths)) if exists else paths
        if not extant_paths:
            msg = "%s environment variable is empty" % name.upper()
            raise distutils.errors.DistutilsPlatformError(msg)
        unique_paths = self._unique_everseen(extant_paths)
        return os.pathsep.join(unique_paths)

    # from Python docs 

def _build_paths(self, name, spec_path_lists, exists):
        """
        Given an environment variable name and specified paths,
        return a pathsep-separated string of paths containing
        unique, extant, directories from those paths and from
        the environment variable. Raise an error if no paths
        are resolved.
        """
        # flatten spec_path_lists
        spec_paths = itertools.chain.from_iterable(spec_path_lists)
        env_paths = safe_env.get(name, '').split(os.pathsep)
        paths = itertools.chain(spec_paths, env_paths)
        extant_paths = list(filter(os.path.isdir, paths)) if exists else paths
        if not extant_paths:
            msg = "%s environment variable is empty" % name.upper()
            raise distutils.errors.DistutilsPlatformError(msg)
        unique_paths = self._unique_everseen(extant_paths)
        return os.pathsep.join(unique_paths)

    # from Python docs 

def create_loader(search_path_string=None):
    """Create a Loader class.

    This factory function creates a loader given a search string path.

    :type search_string_path: str
    :param search_string_path: The AWS_DATA_PATH value.  A string
        of data path values separated by the ``os.path.pathsep`` value,
        which is typically ``:`` on POSIX platforms and ``;`` on
        windows.

    :return: A ``Loader`` instance.

    """
    if search_path_string is None:
        return Loader()
    paths = []
    extra_paths = search_path_string.split(os.pathsep)
    for path in extra_paths:
        path = os.path.expanduser(os.path.expandvars(path))
        paths.append(path)
    return Loader(extra_search_paths=paths) 

def get_standard_config_files(self):
        """Return list of config files, from environment or standard."""
        try:
            config_files = os.environ['DOCUTILSCONFIG'].split(os.pathsep)
        except KeyError:
            config_files = self.standard_config_files

        # If 'HOME' is not set, expandvars() requires the 'pwd' module which is
        # not available under certain environments, for example, within
        # mod_python.  The publisher ends up in here, and we need to publish
        # from within mod_python.  Therefore we need to avoid expanding when we
        # are in those environments.
        expand = os.path.expanduser
        if 'HOME' not in os.environ:
            try:
                import pwd
            except ImportError:
                expand = lambda x: x
        return [expand(f) for f in config_files if f.strip()] 

def which(program):
    import os
    def is_exe(fpath):
        return os.path.isfile(fpath) and os.access(fpath, os.X_OK)

    fpath, fname = os.path.split(program)
    if fpath:
        if is_exe(program):
            return program
    else:
        for path in os.environ["PATH"].split(os.pathsep):
            path = path.strip('"')
            exe_file = os.path.join(path, program)
            if is_exe(exe_file):
                return exe_file

    return None 

def _get_path_in_cache(name, sha1, urls, ext=None, sources=False, oldPath=False):
    """
    Gets the path an artifact has (or would have) in the download cache.
    """
    assert sha1 != 'NOCHECK', 'artifact for ' + name + ' cannot be cached since its sha1 is NOCHECK'
    if ext is None:
        for url in urls:
            # Use extension of first URL whose path component ends with a non-empty extension
            o = _urllib_parse.urlparse(url)
            if o.path == "/remotecontent" and o.query.startswith("filepath"):
                path = o.query
            else:
                path = o.path
            ext = get_file_extension(path)
            if ext:
                ext = '.' + ext
                break
        if not ext:
            abort('Could not determine a file extension from URL(s):\n  ' + '\n  '.join(urls))
    assert os.sep not in name, name + ' cannot contain ' + os.sep
    assert os.pathsep not in name, name + ' cannot contain ' + os.pathsep
    if oldPath:
        return join(_cache_dir(), name + ('.sources' if sources else '') + '_' + sha1 + ext)  # mx < 5.176.0
    filename = _map_to_maven_dist_name(name) + ('.sources' if sources else '') + ext
    return join(_cache_dir(), name + '_' + sha1 + ('.dir' if not ext else ''), filename) 

def classpath_walk(names=None, resolve=True, includeSelf=True, includeBootClasspath=False, jdk=None):
    """
    Walks the resources available in a given classpath, yielding a tuple for each resource
    where the first member of the tuple is a directory path or ZipFile object for a
    classpath entry and the second member is the qualified path of the resource relative
    to the classpath entry.
    """
    cp = classpath(names, resolve, includeSelf, includeBootClasspath, jdk=jdk)
    for entry in cp.split(os.pathsep):
        if not exists(entry):
            continue
        if isdir(entry):
            for root, dirs, files in os.walk(entry):
                for d in dirs:
                    entryPath = join(root[len(entry) + 1:], d)
                    yield entry, _encode(entryPath)
                for f in files:
                    entryPath = join(root[len(entry) + 1:], f)
                    yield entry, _encode(entryPath)
        elif entry.endswith('.jar') or entry.endswith('.zip'):
            with zipfile.ZipFile(entry, 'r') as zf:
                for zi in zf.infolist():
                    entryPath = zi.filename
                    yield zf, _encode(entryPath) 

def where(program):
    r"""Parse PATH for executables

    Windows note:
        PATHEXT yields possible suffixes, such as .exe, .bat and .cmd

    Usage:
        >> where("python")
        'c:\\python27\\python.exe'

    """

    suffixes = [""]

    try:
        # Append Windows suffixes, such as .exe, .bat and .cmd
        suffixes.extend(os.environ.get("PATHEXT").split(os.pathsep))
    except:
        pass

    for path in os.environ["PATH"].split(os.pathsep):

        # A path may be empty.
        if not path:
            continue

        for suffix in suffixes:
            full_path = os.path.join(path, program + suffix)
            if os.path.isfile(full_path):
                return full_path 

def install_dependencies():
    """Add PyQt5 to PYTHONPATH"""
    pyqt_path = os.path.join(repository_dir, "lib", "python-qt5")
    assert os.path.isdir(pyqt_path)

    if pyqt_path not in os.environ.get("PYTHONPATH", ""):
        var = pyqt_path + os.pathsep + os.environ.get("PYTHONPATH", "")
        os.environ["PYTHONPATH"] = var

    if pyqt_path not in sys.path:
        sys.path.insert(0, pyqt_path) 

def install_path():
    """Add Python 2.7 to PATH"""
    python_path = os.path.join(repository_dir, "lib", "Python27")
    assert os.path.isdir(python_path)
    if python_path not in os.environ.get("PATH", ""):
        var = python_path + os.pathsep + os.environ.get("PATH", "")
        os.environ["PATH"] = var 

def install_pythonpath():
    """Add Pyblish packages to PYTHONPATH"""
    if pythonpath not in os.environ["PYTHONPATH"]:
        var = pythonpath + os.pathsep + os.environ.get("PYTHONPATH", "")
        os.environ["PYTHONPATH"] = var 

def find_library(name):
        if name in ('c', 'm'):
            return find_msvcrt()
        # See MSDN for the REAL search order.
        for directory in os.environ['PATH'].split(os.pathsep):
            fname = os.path.join(directory, name)
            if os.path.isfile(fname):
                return fname
            if fname.lower().endswith(".dll"):
                continue
            fname = fname + ".dll"
            if os.path.isfile(fname):
                return fname
        return None 

def _execvpe(file, args, env=None):
    if env is not None:
        func = execve
        argrest = (args, env)
    else:
        func = execv
        argrest = (args,)
        env = environ

    head, tail = path.split(file)
    if head:
        func(file, *argrest)
        return
    if 'PATH' in env:
        envpath = env['PATH']
    else:
        envpath = defpath
    PATH = envpath.split(pathsep)
    saved_exc = None
    saved_tb = None
    for dir in PATH:
        fullname = path.join(dir, file)
        try:
            func(fullname, *argrest)
        except error, e:
            tb = sys.exc_info()[2]
            if (e.errno != errno.ENOENT and e.errno != errno.ENOTDIR
                and saved_exc is None):
                saved_exc = e
                saved_tb = tb 

def test_finalize_options(self):
        # finalize_options does a bit of transformation
        # on options
        pkg_dir, dist = self.create_dist()
        cmd = config(dist)
        cmd.include_dirs = 'one%stwo' % os.pathsep
        cmd.libraries = 'one'
        cmd.library_dirs = 'three%sfour' % os.pathsep
        cmd.ensure_finalized()

        self.assertEqual(cmd.include_dirs, ['one', 'two'])
        self.assertEqual(cmd.libraries, ['one'])
        self.assertEqual(cmd.library_dirs, ['three', 'four']) 

def fixup_build_ext(cmd):
    """Function needed to make build_ext tests pass.

    When Python was build with --enable-shared on Unix, -L. is not good
    enough to find the libpython<blah>.so.  This is because regrtest runs
    it under a tempdir, not in the top level where the .so lives.  By the
    time we've gotten here, Python's already been chdir'd to the tempdir.

    When Python was built with in debug mode on Windows, build_ext commands
    need their debug attribute set, and it is not done automatically for
    some reason.

    This function handles both of these things.  Example use:

        cmd = build_ext(dist)
        support.fixup_build_ext(cmd)
        cmd.ensure_finalized()

    Unlike most other Unix platforms, Mac OS X embeds absolute paths
    to shared libraries into executables, so the fixup is not needed there.
    """
    if os.name == 'nt':
        cmd.debug = sys.executable.endswith('_d.exe')
    elif sysconfig.get_config_var('Py_ENABLE_SHARED'):
        # To further add to the shared builds fun on Unix, we can't just add
        # library_dirs to the Extension() instance because that doesn't get
        # plumbed through to the final compiler command.
        runshared = sysconfig.get_config_var('RUNSHARED')
        if runshared is None:
            cmd.library_dirs = ['.']
        else:
            if sys.platform == 'darwin':
                cmd.library_dirs = []
            else:
                name, equals, value = runshared.partition('=')
                cmd.library_dirs = [d for d in value.split(os.pathsep) if d] 

def finalize_options(self):
        if self.include_dirs is None:
            self.include_dirs = self.distribution.include_dirs or []
        elif isinstance(self.include_dirs, str):
            self.include_dirs = self.include_dirs.split(os.pathsep)

        if self.libraries is None:
            self.libraries = []
        elif isinstance(self.libraries, str):
            self.libraries = [self.libraries]

        if self.library_dirs is None:
            self.library_dirs = []
        elif isinstance(self.library_dirs, str):
            self.library_dirs = self.library_dirs.split(os.pathsep) 

def removeDuplicates(variable):
    """Remove duplicate values of an environment variable.
    """
    oldList = variable.split(os.pathsep)
    newList = []
    for i in oldList:
        if i not in newList:
            newList.append(i)
    newVariable = os.pathsep.join(newList)
    return newVariable 

def query_vcvarsall(version, arch="x86"):
    """Launch vcvarsall.bat and read the settings from its environment
    """
    vcvarsall = find_vcvarsall(version)
    interesting = set(("include", "lib", "libpath", "path"))
    result = {}

    if vcvarsall is None:
        raise DistutilsPlatformError("Unable to find vcvarsall.bat")
    log.debug("Calling 'vcvarsall.bat %s' (version=%s)", arch, version)
    popen = subprocess.Popen('"%s" %s & set' % (vcvarsall, arch),
                             stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE)
    try:
        stdout, stderr = popen.communicate()
        if popen.wait() != 0:
            raise DistutilsPlatformError(stderr.decode("mbcs"))

        stdout = stdout.decode("mbcs")
        for line in stdout.split("\n"):
            line = Reg.convert_mbcs(line)
            if '=' not in line:
                continue
            line = line.strip()
            key, value = line.split('=', 1)
            key = key.lower()
            if key in interesting:
                if value.endswith(os.pathsep):
                    value = value[:-1]
                result[key] = removeDuplicates(value)

    finally:
        popen.stdout.close()
        popen.stderr.close()

    if len(result) != len(interesting):
        raise ValueError(str(list(result.keys())))

    return result

# More globals 

def test_find_mac(self):
        data = '''\

fake hwaddr
cscotun0  Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
eth0      Link encap:Ethernet  HWaddr 12:34:56:78:90:ab
'''
        def mock_popen(cmd):
            return io.BytesIO(data)

        path = os.environ.get("PATH", os.defpath).split(os.pathsep)
        path.extend(('/sbin', '/usr/sbin'))
        for dir in path:
            executable = os.path.join(dir, 'ifconfig')
            if (os.path.exists(executable) and
                os.access(executable, os.F_OK | os.X_OK) and
                not os.path.isdir(executable)):
                break
        else:
            self.skipTest('requires ifconfig')

        with test_support.swap_attr(os, 'popen', mock_popen):
            mac = uuid._find_mac(
                command='ifconfig',
                args='',
                hw_identifiers=['hwaddr'],
                get_index=lambda x: x + 1,
            )
            self.assertEqual(mac, 0x1234567890ab) 

def find_in_path(name, path):
    "Find a file in a search path"
    #adapted fom http://code.activestate.com/recipes/52224-find-a-file-given-a-search-path/
    for dir in path.split(os.pathsep):
        binpath = pjoin(dir, name)
        if os.path.exists(binpath):
            return os.path.abspath(binpath)
    return None 

def locate_cuda():
    """Locate the CUDA environment on the system

    Returns a dict with keys 'home', 'nvcc', 'include', and 'lib64'
    and values giving the absolute path to each directory.

    Starts by looking for the CUDAHOME env variable. If not found, everything
    is based on finding 'nvcc' in the PATH.
    """

    # first check if the CUDAHOME env variable is in use
    if 'CUDAHOME' in os.environ:
        home = os.environ['CUDAHOME']
        nvcc = pjoin(home, 'bin', 'nvcc')
    else:
        # otherwise, search the PATH for NVCC
        default_path = pjoin(os.sep, 'usr', 'local', 'cuda', 'bin')
        nvcc = find_in_path('nvcc', os.environ['PATH'] + os.pathsep + default_path)
        if nvcc is None:
          return None;
        home = os.path.dirname(os.path.dirname(nvcc))

    cudaconfig = {'home':home, 'nvcc':nvcc,
                  'include': pjoin(home, 'include'),
                  'lib64': pjoin(home, 'lib64')}
    for k, v in list(cudaconfig.items()):
        if not os.path.exists(v):
            return None;

    return cudaconfig 

def update_paths(self):
        """Update the OS and Python paths."""

        #For Windows, add the bin_dir to the OS path. This is unnecessary
        #for Linux and Mac, where the OS can find this information via rpath.
        if self.is_windows:
            os.environ[self.path_var] = self.bin_dir + os.pathsep + os.environ[self.path_var]

        #Add all paths to the Python path.
        sys.path.insert(0, self.bin_dir)
        sys.path.insert(0, self.runtime_dir)
        sys.path.insert(0, self.ml_dir) 

def site_config_dirs(appname):
    r"""Return a list of potential user-shared config dirs for this application.

        "appname" is the name of application.

    Typical user config directories are:
        macOS:      /Library/Application Support/<AppName>/
        Unix:       /etc or $XDG_CONFIG_DIRS[i]/<AppName>/ for each value in
                    $XDG_CONFIG_DIRS
        Win XP:     C:\Documents and Settings\All Users\Application ...
                    ...Data\<AppName>\
        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory
                    on Vista.)
        Win 7:      Hidden, but writeable on Win 7:
                    C:\ProgramData\<AppName>\
    """
    if WINDOWS:
        path = os.path.normpath(_get_win_folder("CSIDL_COMMON_APPDATA"))
        pathlist = [os.path.join(path, appname)]
    elif sys.platform == 'darwin':
        pathlist = [os.path.join('/Library/Application Support', appname)]
    else:
        # try looking in $XDG_CONFIG_DIRS
        xdg_config_dirs = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
        if xdg_config_dirs:
            pathlist = [
                os.path.join(expanduser(x), appname)
                for x in xdg_config_dirs.split(os.pathsep)
            ]
        else:
            pathlist = []

        # always look in /etc directly as well
        pathlist.append('/etc')

    return pathlist


# -- Windows support functions -- 

def __enter__(self):
        self._temp_dir.create()

        self.save_path = os.environ.get('PATH', None)
        self.save_pythonpath = os.environ.get('PYTHONPATH', None)
        self.save_nousersite = os.environ.get('PYTHONNOUSERSITE', None)

        install_scheme = 'nt' if (os.name == 'nt') else 'posix_prefix'
        install_dirs = get_paths(install_scheme, vars={
            'base': self.path,
            'platbase': self.path,
        })

        scripts = install_dirs['scripts']
        if self.save_path:
            os.environ['PATH'] = scripts + os.pathsep + self.save_path
        else:
            os.environ['PATH'] = scripts + os.pathsep + os.defpath

        # Note: prefer distutils' sysconfig to get the
        # library paths so PyPy is correctly supported.
        purelib = get_python_lib(plat_specific=0, prefix=self.path)
        platlib = get_python_lib(plat_specific=1, prefix=self.path)
        if purelib == platlib:
            lib_dirs = purelib
        else:
            lib_dirs = purelib + os.pathsep + platlib
        if self.save_pythonpath:
            os.environ['PYTHONPATH'] = lib_dirs + os.pathsep + \
                self.save_pythonpath
        else:
            os.environ['PYTHONPATH'] = lib_dirs

        os.environ['PYTHONNOUSERSITE'] = '1'

        return self.path 

def grafana_cli_bin(params):
    '''
    Get the grafana-cli binary path with global options.
    Raise a GrafanaCliException if the grafana-cli is not present or not in PATH

    :param params: ansible module params. Used to fill grafana-cli global params.
    '''
    program = 'grafana-cli'
    grafana_cli = None

    def is_exe(fpath):
        return os.path.isfile(fpath) and os.access(fpath, os.X_OK)

    fpath, fname = os.path.split(program)
    if fpath:
        if is_exe(program):
            grafana_cli = program
    else:
        for path in os.environ["PATH"].split(os.pathsep):
            path = path.strip('"')
            exe_file = os.path.join(path, program)
            if is_exe(exe_file):
                grafana_cli = exe_file
                break

    if grafana_cli is None:
        raise GrafanaCliException('grafana-cli binary is not present or not in PATH')
    else:
        if 'grafana_plugin_url' in params and params['grafana_plugin_url']:
            grafana_cli = '{} {} {}'.format(grafana_cli, '--pluginUrl', params['grafana_plugin_url'])
        if 'grafana_plugins_dir' in params and params['grafana_plugins_dir']:
            grafana_cli = '{} {} {}'.format(grafana_cli, '--pluginsDir', params['grafana_plugins_dir'])
        if 'grafana_repo' in params and params['grafana_repo']:
            grafana_cli = '{} {} {}'.format(grafana_cli, '--repo', params['grafana_repo'])
        if 'validate_certs' in params and params['validate_certs'] is False:
            grafana_cli = '{} {}'.format(grafana_cli, '--insecure')

        return '{} {}'.format(grafana_cli, 'plugins') 

def remove_ffmpeg_log_files(self):
        """Remove any log files."""
        path = self.get_target_path()
        dir = os.path.dirname(path.rstrip(os.pathsep))
        if os.path.isdir(dir):
            for file in os.listdir(dir):
                log_path = os.path.abspath(dir + "/" + file)
                ext = file.split('.')[-1]
                if ext == 'log' and log_path.startswith(path):
                    os.unlink(log_path) 

def _execvpe(file, args, env=None):
    if env is not None:
        func = execve
        argrest = (args, env)
    else:
        func = execv
        argrest = (args,)
        env = environ

    head, tail = path.split(file)
    if head:
        func(file, *argrest)
        return
    if 'PATH' in env:
        envpath = env['PATH']
    else:
        envpath = defpath
    PATH = envpath.split(pathsep)
    saved_exc = None
    saved_tb = None
    for dir in PATH:
        fullname = path.join(dir, file)
        try:
            func(fullname, *argrest)
        except error, e:
            tb = sys.exc_info()[2]
            if (e.errno != errno.ENOENT and e.errno != errno.ENOTDIR
                and saved_exc is None):
                saved_exc = e
                saved_tb = tb 

def get_pathext(default_pathext=None):
    """Returns the path extensions from environment or a default"""
    if default_pathext is None:
        default_pathext = os.pathsep.join(['.COM', '.EXE', '.BAT', '.CMD'])
    pathext = os.environ.get('PATHEXT', default_pathext)
    return pathext 

def which(self, fname):
        """Returns the fully qualified path by searching Path of the given 
        name"""
        for pe in os.environ['PATH'].split(os.pathsep):
            checkname = os.path.join(pe, fname)
            if os.access(checkname, os.X_OK) and not os.path.isdir(checkname):
                return checkname
        return None 

def _which_dirs(cmd):
    result = set()
    for path in os.environ.get('PATH', '').split(os.pathsep):
        filename = os.path.join(path, cmd)
        if os.access(filename, os.X_OK):
            result.add(path)
    return result 

def check_site_dir(self):
        """Verify that self.install_dir is .pth-capable dir, if needed"""

        instdir = normalize_path(self.install_dir)
        pth_file = os.path.join(instdir,'easy-install.pth')

        # Is it a configured, PYTHONPATH, implicit, or explicit site dir?
        is_site_dir = instdir in self.all_site_dirs

        if not is_site_dir and not self.multi_version:
            # No?  Then directly test whether it does .pth file processing
            is_site_dir = self.check_pth_processing()
        else:
            # make sure we can write to target dir
            testfile = self.pseudo_tempname()+'.write-test'
            test_exists = os.path.exists(testfile)
            try:
                if test_exists: os.unlink(testfile)
                open(testfile,'w').close()
                os.unlink(testfile)
            except (OSError,IOError):
                self.cant_write_to_target()

        if not is_site_dir and not self.multi_version:
            # Can't install non-multi to non-site dir
            raise DistutilsError(self.no_default_version_msg())

        if is_site_dir:
            if self.pth_file is None:
                self.pth_file = PthDistributions(pth_file, self.all_site_dirs)
        else:
            self.pth_file = None

        PYTHONPATH = os.environ.get('PYTHONPATH','').split(os.pathsep)
        if instdir not in map(normalize_path, [_f for _f in PYTHONPATH if _f]):
            # only PYTHONPATH dirs need a site.py, so pretend it's there
            self.sitepy_installed = True
        elif self.multi_version and not os.path.exists(pth_file):
            self.sitepy_installed = True    # don't need site.py in this case
            self.pth_file = None            # and don't create a .pth file
        self.install_dir = instdir 

def finalize_options (self):
            if self.library_dirs is None:
                self.library_dirs = []
            elif isinstance(self.library_dirs, basestring):
                self.library_dirs = self.library_dirs.split(os.pathsep)
            
            self.library_dirs.insert(0, os.path.join(sys.real_prefix, "Libs"))
            old_build_ext.finalize_options(self) 

def site_config_dirs(appname):
    """Return a list of potential user-shared config dirs for this application.

        "appname" is the name of application.

    Typical user config directories are:
        macOS:      /Library/Application Support/<AppName>/
        Unix:       /etc or $XDG_CONFIG_DIRS[i]/<AppName>/ for each value in
                    $XDG_CONFIG_DIRS
        Win XP:     C:\Documents and Settings\All Users\Application ...
                    ...Data\<AppName>\
        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory
                    on Vista.)
        Win 7:      Hidden, but writeable on Win 7:
                    C:\ProgramData\<AppName>\
    """
    if WINDOWS:
        path = os.path.normpath(_get_win_folder("CSIDL_COMMON_APPDATA"))
        pathlist = [os.path.join(path, appname)]
    elif sys.platform == 'darwin':
        pathlist = [os.path.join('/Library/Application Support', appname)]
    else:
        # try looking in $XDG_CONFIG_DIRS
        xdg_config_dirs = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
        if xdg_config_dirs:
            pathlist = [
                os.path.join(expanduser(x), appname)
                for x in xdg_config_dirs.split(os.pathsep)
            ]
        else:
            pathlist = []

        # always look in /etc directly as well
        pathlist.append('/etc')

    return pathlist


# -- Windows support functions -- 

def finalize_options (self):
            if self.library_dirs is None:
                self.library_dirs = []
            elif isinstance(self.library_dirs, basestring):
                self.library_dirs = self.library_dirs.split(os.pathsep)
            
            self.library_dirs.insert(0, os.path.join(sys.real_prefix, "Libs"))
            old_build_ext.finalize_options(self) 

def populate_ld_paths():
    global ld_paths
    ld_paths = []
    for line in check_output_sudo_if_fails(['ldconfig', '-vNX']).decode('utf8').splitlines():
        if line.startswith('/'):
            ld_paths.append(line[:line.find(':')])
    if "LD_LIBRARY_PATH" in os.environ:
        ld_paths.extend(os.environ["LD_LIBRARY_PATH"].split(os.pathsep)) 

def search_on_path(filenames):
    filenames = list(filenames)

    for path in os.environ["PATH"].split(os.pathsep):
        for filename in filenames:
            if os.path.exists(os.path.join(path, filename)):
                return os.path.abspath(os.path.join(path, filename)) 

def _pythonpath():
    items = os.environ.get('PYTHONPATH', '').split(os.pathsep)
    return filter(None, items) 

def include_dirs():
    ans = []
    if 'UNRAR_INCLUDE' in os.environ:
        ans.extend(os.environ['UNRAR_INCLUDE'].split(os.pathsep))
    return ans 

def library_dirs():
    ans = []
    if 'UNRAR_LIBDIRS' in os.environ:
        ans.extend(os.environ['UNRAR_LIBDIRS'].split(os.pathsep))
    return ans 

def which(executable):
        path = os.environ.get("PATH")
        if not path:
            return None
        for dirname in path.split(os.pathsep):
            filename = os.path.join(dirname, executable)
            if os.path.isfile(filename) and os.access(filename, os.X_OK):
                return filename
        return None 

def site_config_dirs(appname):
    """Return a list of potential user-shared config dirs for this application.

        "appname" is the name of application.

    Typical user config directories are:
        macOS:      /Library/Application Support/<AppName>/
        Unix:       /etc or $XDG_CONFIG_DIRS[i]/<AppName>/ for each value in
                    $XDG_CONFIG_DIRS
        Win XP:     C:\Documents and Settings\All Users\Application ...
                    ...Data\<AppName>\
        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory
                    on Vista.)
        Win 7:      Hidden, but writeable on Win 7:
                    C:\ProgramData\<AppName>\
    """
    if WINDOWS:
        path = os.path.normpath(_get_win_folder("CSIDL_COMMON_APPDATA"))
        pathlist = [os.path.join(path, appname)]
    elif sys.platform == 'darwin':
        pathlist = [os.path.join('/Library/Application Support', appname)]
    else:
        # try looking in $XDG_CONFIG_DIRS
        xdg_config_dirs = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
        if xdg_config_dirs:
            pathlist = [
                os.path.join(expanduser(x), appname)
                for x in xdg_config_dirs.split(os.pathsep)
            ]
        else:
            pathlist = []

        # always look in /etc directly as well
        pathlist.append('/etc')

    return pathlist


# -- Windows support functions -- 

def _pythonpath():
    items = os.environ.get('PYTHONPATH', '').split(os.pathsep)
    return filter(None, items) 

def create_clidriver():
    driver = awscli.clidriver.create_clidriver()
    session = driver.session
    data_path = session.get_config_variable('data_path').split(os.pathsep)
    if not data_path:
        data_path = []
    _LOADER.search_paths.extend(data_path)
    session.register_component('data_loader', _LOADER)
    return driver 

def _search_path_for_cmd(cmd_name):
    for path in os.environ.get('PATH', '').split(os.pathsep):
        full_cmd_path = os.path.join(path, cmd_name)
        if os.path.isfile(full_cmd_path):
            return full_cmd_path
    return None 

def _exists_on_path(self, name):
        # Since we're only dealing with POSIX systems, we can
        # ignore things like PATHEXT.
        return any([os.path.exists(os.path.join(p, name))
                    for p in os.environ.get('PATH', '').split(os.pathsep)]) 

def which(program):
    for path in os.environ["PATH"].split(os.pathsep):
        path = path.strip('"')
        exe_file = os.path.join(path, program)
        if os.path.isfile(exe_file) and os.access(exe_file, os.X_OK):
            return exe_file

    return None 

def main(argv):
    parser = argparse.ArgumentParser()
    parser.add_argument("--header-in-dir",
                        help="Base directory with source protos.")
    parser.add_argument("--cc-out-dir",
                        help="Output directory for generated moc files.")

    parser.add_argument("headers", nargs="+",
                        help="Input header file(s).")

    options = parser.parse_args()

    # If QTDIR is in the environment, prefer using QTDIR so prepend to PATH.
    if 'QTDIR' in os.environ:
        os.environ['PATH'] = os.path.join(os.environ['QTDIR'], 'bin') \
                + os.pathsep + os.environ['PATH']
    
    # MOC exists in the PATH
    fullpath = which('moc')
    assert fullpath
    
    moc_dir = os.path.relpath(options.header_in_dir)
    cc_out_dir = options.cc_out_dir
    headers = options.headers
    
    for header in headers:
        stripped_name = StripHeaderExtension(header)
        output_cc = os.path.join(cc_out_dir, stripped_name) + ".moc.cc"

        ret = subprocess.call(['moc', os.path.join(moc_dir, header), "-o", output_cc])
        if ret != 0:
            raise RuntimeError("Moc has returned non-zero status: "
                               "{0} .".format(ret)) 

def which(
    command: str, *, return_bool: bool = False, raise_error: bool = False, raise_msg: str = None, env: str = None
) -> Union[bool, None, str]:
    """Test to see if a command is available.

    Returns
    -------
    str or None
        By default, returns command path if command found or `None` if not.
        Environment is $PATH or `os.pathsep`-separated `env`, less any None values.
    bool
        When `return_bool=True`, returns whether or not found.

    Raises
    ------
    ModuleNotFoundError
        When `raises_error=True` and command not found. Raises generic message plus any `raise_msg`.

    """
    if env is None:
        lenv = {"PATH": os.pathsep + os.environ.get("PATH", "") + os.path.dirname(sys.executable)}
    else:
        lenv = {"PATH": os.pathsep.join([os.path.abspath(x) for x in env.split(os.pathsep) if x != ""])}
    lenv = {k: v for k, v in lenv.items() if v is not None}

    ans = shutil.which(command, mode=os.F_OK | os.X_OK, path=lenv["PATH"])

    if raise_error and ans is None:
        raise ModuleNotFoundError(
            f"Command '{command}' not found in envvar PATH.{' ' + raise_msg if raise_msg else ''}"
        )

    if return_bool:
        return bool(ans)
    else:
        return ans 

def find_in_path(name, path):
    "Find a file in a search path"
    # Adapted fom
    # http://code.activestate.com/recipes/52224-find-a-file-given-a-search-path/
    for dir in path.split(os.pathsep):
        binpath = pjoin(dir, name)
        if os.path.exists(binpath):
            return os.path.abspath(binpath)
    return None 

def locate_cuda():
    """Locate the CUDA environment on the system

    Returns a dict with keys 'home', 'nvcc', 'include', and 'lib64'
    and values giving the absolute path to each directory.

    Starts by looking for the CUDAHOME env variable. If not found, everything
    is based on finding 'nvcc' in the PATH.
    """

    # first check if the CUDAHOME env variable is in use
    if 'CUDA_PATH' in os.environ:
        home = os.environ['CUDA_PATH']
        print("home = %s\n" % home)
        nvcc = pjoin(home, 'bin', nvcc_bin)
    else:
        # otherwise, search the PATH for NVCC
        default_path = pjoin(os.sep, 'usr', 'local', 'cuda', 'bin')
        nvcc = find_in_path(nvcc_bin, os.environ['PATH'] + os.pathsep + default_path)
        if nvcc is None:
            raise EnvironmentError('The nvcc binary could not be '
                'located in your $PATH. Either add it to your path, or set $CUDA_PATH')
        home = os.path.dirname(os.path.dirname(nvcc))
        print("home = %s, nvcc = %s\n" % (home, nvcc))


    cudaconfig = {'home':home, 'nvcc':nvcc,
                  'include': pjoin(home, 'include'),
                  'lib64': pjoin(home, lib_dir)}
    for k, v in cudaconfig.iteritems():
        if not os.path.exists(v):
            raise EnvironmentError('The CUDA %s path could not be located in %s' % (k, v))

    return cudaconfig 

def find_in_path(name, path):
    "Find a file in a search path"
    # Adapted fom
    # http://code.activestate.com/recipes/52224-find-a-file-given-a-search-path/
    for dir in path.split(os.pathsep):
        binpath = pjoin(dir, name)
        if os.path.exists(binpath):
            return os.path.abspath(binpath)
    return None 

def locate_cuda():
    """Locate the CUDA environment on the system
    Returns a dict with keys 'home', 'nvcc', 'include', and 'lib64'
    and values giving the absolute path to each directory.
    Starts by looking for the CUDAHOME env variable. If not found, everything
    is based on finding 'nvcc' in the PATH.
    """

    # first check if the CUDAHOME env variable is in use
    if 'CUDAHOME' in os.environ:
        home = os.environ['CUDAHOME']
        nvcc = pjoin(home, 'bin', 'nvcc')
    else:
        # otherwise, search the PATH for NVCC
        default_path = pjoin(os.sep, 'usr', 'local', 'cuda', 'bin')
        nvcc = find_in_path('nvcc', os.environ['PATH'] + os.pathsep + default_path)
        if nvcc is None:
            raise EnvironmentError('The nvcc binary could not be '
                'located in your $PATH. Either add it to your path, or set $CUDAHOME')
        home = os.path.dirname(os.path.dirname(nvcc))

    cudaconfig = {'home':home, 'nvcc':nvcc,
                  'include': pjoin(home, 'include'),
                  'lib64': pjoin(home, 'lib64')}
    for k, v in cudaconfig.iteritems():
        if not os.path.exists(v):
            raise EnvironmentError('The CUDA %s path could not be located in %s' % (k, v))

    return cudaconfig 

def _separatedCygpathU2W(p):
    """
    Translate a group of paths, separated by a path separator.
    unix-style to windows-style.
    This method has no effects on other platforms than cygwin.
    """
    if p is None or p == "" or not is_cygwin():
        return p
    return ';'.join(map(_cygpathU2W, p.split(os.pathsep))) 

def _separatedCygpathW2U(p):
    """
    Translate a group of paths, separated by a path separator.
    windows-style to unix-style.
    This method has no effects on other platforms than cygwin.
    """
    if p is None or p == "" or not is_cygwin():
        return p
    return os.pathsep.join(map(_cygpathW2U, p.split(';'))) 

def annotation_processors_path(self, jdk):
        """
        Gets the class path composed of this project's annotation processor jars and the jars they depend upon.
        """
        aps = self.annotation_processors()
        if len(aps):
            entries = classpath_entries(names=aps)
            invalid = [e.classpath_repr(resolve=True) for e in entries if not e.isJar()]
            if invalid:
                abort('Annotation processor path can only contain jars: ' + str(invalid), context=self)
            entries = (e.classpath_repr(jdk, resolve=True) if e.isJdkLibrary() else e.classpath_repr(resolve=True) for e in entries)
            return os.pathsep.join((e for e in entries if e))
        return None 

def main():
    pathlist = os.environ['PATH'].split(os.pathsep)

    sts = 0
    longlist = ''

    if sys.argv[1:] and sys.argv[1][:2] == '-l':
        longlist = sys.argv[1]
        del sys.argv[1]

    for prog in sys.argv[1:]:
        ident = ()
        for dir in pathlist:
            filename = os.path.join(dir, prog)
            try:
                st = os.stat(filename)
            except os.error:
                continue
            if not S_ISREG(st[ST_MODE]):
                msg(filename + ': not a disk file')
            else:
                mode = S_IMODE(st[ST_MODE])
                if mode & 0111:
                    if not ident:
                        print filename
                        ident = st[:3]
                    else:
                        if st[:3] == ident:
                            s = 'same as: '
                        else:
                            s = 'also: '
                        msg(s + filename)
                else:
                    msg(filename + ': not executable')
            if longlist:
                sts = os.system('ls ' + longlist + ' ' + filename)
                if sts: msg('"ls -l" exit status: ' + repr(sts))
        if not ident:
            msg(prog + ': not found')
            sts = 1

    sys.exit(sts) 

def _script():
    help = """\
    %s [--user-base] [--user-site]

    Without arguments print some useful information
    With arguments print the value of USER_BASE and/or USER_SITE separated
    by '%s'.

    Exit codes with --user-base or --user-site:
      0 - user site directory is enabled
      1 - user site directory is disabled by user
      2 - uses site directory is disabled by super user
          or for security reasons
     >2 - unknown error
    """
    args = sys.argv[1:]
    if not args:
        print "sys.path = ["
        for dir in sys.path:
            print "    %r," % (dir,)
        print "]"
        print "USER_BASE: %r (%s)" % (USER_BASE,
            "exists" if os.path.isdir(USER_BASE) else "doesn't exist")
        print "USER_SITE: %r (%s)" % (USER_SITE,
            "exists" if os.path.isdir(USER_SITE) else "doesn't exist")
        print "ENABLE_USER_SITE: %r" %  ENABLE_USER_SITE
        sys.exit(0)

    buffer = []
    if '--user-base' in args:
        buffer.append(USER_BASE)
    if '--user-site' in args:
        buffer.append(USER_SITE)

    if buffer:
        print os.pathsep.join(buffer)
        if ENABLE_USER_SITE:
            sys.exit(0)
        elif ENABLE_USER_SITE is False:
            sys.exit(1)
        elif ENABLE_USER_SITE is None:
            sys.exit(2)
        else:
            sys.exit(3)
    else:
        import textwrap
        print textwrap.dedent(help % (sys.argv[0], os.pathsep))
        sys.exit(10) 

def site_config_dir(appname=None, appauthor=None, version=None, multipath=False):
    """Return full path to the user-shared data dir for this application.

        "appname" is the name of application.
            If None, just the system directory is returned.
        "appauthor" (only used on Windows) is the name of the
            appauthor or distributing body for this application. Typically
            it is the owning company name. This falls back to appname. You may
            pass False to disable it.
        "version" is an optional version path element to append to the
            path. You might want to use this if you want multiple versions
            of your app to be able to run independently. If used, this
            would typically be "<major>.<minor>".
            Only applied when appname is present.
        "multipath" is an optional parameter only applicable to *nix
            which indicates that the entire list of config dirs should be
            returned. By default, the first item from XDG_CONFIG_DIRS is
            returned, or '/etc/xdg/<AppName>', if XDG_CONFIG_DIRS is not set

    Typical user data directories are:
        Mac OS X:   same as site_data_dir
        Unix:       /etc/xdg/<AppName> or $XDG_CONFIG_DIRS[i]/<AppName> for each value in
                    $XDG_CONFIG_DIRS
        Win *:      same as site_data_dir
        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)

    For Unix, this is using the $XDG_CONFIG_DIRS[0] default, if multipath=False

    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
    """
    if system in ["win32", "darwin"]:
        path = site_data_dir(appname, appauthor)
        if appname and version:
            path = os.path.join(path, version)
    else:
        # XDG default for $XDG_CONFIG_DIRS
        # only first, if multipath is False
        path = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
        if appname:
            if version:
                appname = os.path.join(appname, version)
            pathlist = [os.sep.join([x, appname]) for x in pathlist]

        if multipath:
            path = os.pathsep.join(pathlist)
        else:
            path = pathlist[0]
    return path 

def site_config_dir(appname=None, appauthor=None, version=None, multipath=False):
    r"""Return full path to the user-shared data dir for this application.

        "appname" is the name of application.
            If None, just the system directory is returned.
        "appauthor" (only used on Windows) is the name of the
            appauthor or distributing body for this application. Typically
            it is the owning company name. This falls back to appname. You may
            pass False to disable it.
        "version" is an optional version path element to append to the
            path. You might want to use this if you want multiple versions
            of your app to be able to run independently. If used, this
            would typically be "<major>.<minor>".
            Only applied when appname is present.
        "multipath" is an optional parameter only applicable to *nix
            which indicates that the entire list of config dirs should be
            returned. By default, the first item from XDG_CONFIG_DIRS is
            returned, or '/etc/xdg/<AppName>', if XDG_CONFIG_DIRS is not set

    Typical site config directories are:
        Mac OS X:   same as site_data_dir
        Unix:       /etc/xdg/<AppName> or $XDG_CONFIG_DIRS[i]/<AppName> for each value in
                    $XDG_CONFIG_DIRS
        Win *:      same as site_data_dir
        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)

    For Unix, this is using the $XDG_CONFIG_DIRS[0] default, if multipath=False

    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
    """
    if system in ["win32", "darwin"]:
        path = site_data_dir(appname, appauthor)
        if appname and version:
            path = os.path.join(path, version)
    else:
        # XDG default for $XDG_CONFIG_DIRS
        # only first, if multipath is False
        path = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
        if appname:
            if version:
                appname = os.path.join(appname, version)
            pathlist = [os.sep.join([x, appname]) for x in pathlist]

        if multipath:
            path = os.pathsep.join(pathlist)
        else:
            path = pathlist[0]
    return path 

def get_site_dirs():
    # return a list of 'site' dirs
    sitedirs = [_f for _f in os.environ.get('PYTHONPATH',
                                            '').split(os.pathsep) if _f]
    prefixes = [sys.prefix]
    if sys.exec_prefix != sys.prefix:
        prefixes.append(sys.exec_prefix)
    for prefix in prefixes:
        if prefix:
            if sys.platform in ('os2emx', 'riscos'):
                sitedirs.append(os.path.join(prefix, "Lib", "site-packages"))
            elif os.sep == '/':
                sitedirs.extend([os.path.join(prefix,
                                         "lib",
                                         "python" + sys.version[:3],
                                         "site-packages"),
                            os.path.join(prefix, "lib", "site-python")])
            else:
                sitedirs.extend(
                    [prefix, os.path.join(prefix, "lib", "site-packages")]
                )
            if sys.platform == 'darwin':
                # for framework builds *only* we add the standard Apple
                # locations. Currently only per-user, but /Library and
                # /Network/Library could be added too
                if 'Python.framework' in prefix:
                    home = os.environ.get('HOME')
                    if home:
                        sitedirs.append(
                            os.path.join(home,
                                         'Library',
                                         'Python',
                                         sys.version[:3],
                                         'site-packages'))
    lib_paths = get_path('purelib'), get_path('platlib')
    for site_lib in lib_paths:
        if site_lib not in sitedirs: sitedirs.append(site_lib)

    if site.ENABLE_USER_SITE:
        sitedirs.append(site.USER_SITE)

    sitedirs = list(map(normalize_path, sitedirs))

    return sitedirs 

def _script():
    help = """\
    %s [--user-base] [--user-site]

    Without arguments print some useful information
    With arguments print the value of USER_BASE and/or USER_SITE separated
    by '%s'.

    Exit codes with --user-base or --user-site:
      0 - user site directory is enabled
      1 - user site directory is disabled by user
      2 - uses site directory is disabled by super user
          or for security reasons
     >2 - unknown error
    """
    args = sys.argv[1:]
    if not args:
        print("sys.path = [")
        for dir in sys.path:
            print("    %r," % (dir,))
        print("]")
        def exists(path):
            if os.path.isdir(path):
                return "exists"
            else:
                return "doesn't exist"
        print("USER_BASE: %r (%s)" % (USER_BASE, exists(USER_BASE)))
        print("USER_SITE: %r (%s)" % (USER_SITE, exists(USER_BASE)))
        print("ENABLE_USER_SITE: %r" %  ENABLE_USER_SITE)
        sys.exit(0)

    buffer = []
    if '--user-base' in args:
        buffer.append(USER_BASE)
    if '--user-site' in args:
        buffer.append(USER_SITE)

    if buffer:
        print(os.pathsep.join(buffer))
        if ENABLE_USER_SITE:
            sys.exit(0)
        elif ENABLE_USER_SITE is False:
            sys.exit(1)
        elif ENABLE_USER_SITE is None:
            sys.exit(2)
        else:
            sys.exit(3)
    else:
        import textwrap
        print(textwrap.dedent(help % (sys.argv[0], os.pathsep)))
        sys.exit(10) 

def which(cmd, mode=os.F_OK | os.X_OK, path=None):
    """Given a command, mode, and a PATH string, return the path which
    conforms to the given mode on the PATH, or None if there is no such
    file.

    `mode` defaults to os.F_OK | os.X_OK. `path` defaults to the result
    of os.environ.get("PATH"), or can be overridden with a custom search
    path.

    """
    # Check that a given file can be accessed with the correct mode.
    # Additionally check that `file` is not a directory, as on Windows
    # directories pass the os.access check.
    def _access_check(fn, mode):
        return (os.path.exists(fn) and os.access(fn, mode)
                and not os.path.isdir(fn))

    # If we're given a path with a directory part, look it up directly rather
    # than referring to PATH directories. This includes checking relative to the
    # current directory, e.g. ./script
    if os.path.dirname(cmd):
        if _access_check(cmd, mode):
            return cmd
        return None

    if path is None:
        path = os.environ.get("PATH", os.defpath)
    if not path:
        return None
    path = path.split(os.pathsep)

    if sys.platform == "win32":
        # The current directory takes precedence on Windows.
        if not os.curdir in path:
            path.insert(0, os.curdir)

        # PATHEXT is necessary to check on Windows.
        pathext = os.environ.get("PATHEXT", "").split(os.pathsep)
        # See if the given file matches any of the expected path extensions.
        # This will allow us to short circuit when given "python.exe".
        # If it does match, only test that one, otherwise we have to try
        # others.
        if any(cmd.lower().endswith(ext.lower()) for ext in pathext):
            files = [cmd]
        else:
            files = [cmd + ext for ext in pathext]
    else:
        # On other platforms you don't have things like PATHEXT to tell you
        # what file suffixes are executable, so just pass on cmd as-is.
        files = [cmd]

    seen = set()
    for dir in path:
        normdir = os.path.normcase(dir)
        if not normdir in seen:
            seen.add(normdir)
            for thefile in files:
                name = os.path.join(dir, thefile)
                if _access_check(name, mode):
                    return name
    return None 

def get_exec_path(env=None):
    """Returns the sequence of directories that will be searched for the
    named executable (similar to a shell) when launching a process.

    *env* must be an environment variable dict or None.  If *env* is None,
    os.environ will be used.
    """
    # Use a local import instead of a global import to limit the number of
    # modules loaded at startup: the os module is always loaded at startup by
    # Python. It may also avoid a bootstrap issue.
    import warnings

    if env is None:
        env = environ

    # {b'PATH': ...}.get('PATH') and {'PATH': ...}.get(b'PATH') emit a
    # BytesWarning when using python -b or python -bb: ignore the warning
    with warnings.catch_warnings():
        warnings.simplefilter("ignore", BytesWarning)

        try:
            path_list = env.get('PATH')
        except TypeError:
            path_list = None

        if supports_bytes_environ:
            try:
                path_listb = env[b'PATH']
            except (KeyError, TypeError):
                pass
            else:
                if path_list is not None:
                    raise ValueError(
                        "env cannot contain 'PATH' and b'PATH' keys")
                path_list = path_listb

            if path_list is not None and isinstance(path_list, bytes):
                path_list = fsdecode(path_list)

    if path_list is None:
        path_list = defpath
    return path_list.split(pathsep)


# Change environ to automatically call putenv(), unsetenv if they exist. 

def site_config_dir(appname=None, appauthor=None, version=None, multipath=False):
    """Return full path to the user-shared data dir for this application.

        "appname" is the name of application.
            If None, just the system directory is returned.
        "appauthor" (only used on Windows) is the name of the
            appauthor or distributing body for this application. Typically
            it is the owning company name. This falls back to appname. You may
            pass False to disable it.
        "version" is an optional version path element to append to the
            path. You might want to use this if you want multiple versions
            of your app to be able to run independently. If used, this
            would typically be "<major>.<minor>".
            Only applied when appname is present.
        "multipath" is an optional parameter only applicable to *nix
            which indicates that the entire list of config dirs should be
            returned. By default, the first item from XDG_CONFIG_DIRS is
            returned, or '/etc/xdg/<AppName>', if XDG_CONFIG_DIRS is not set

    Typical user data directories are:
        Mac OS X:   same as site_data_dir
        Unix:       /etc/xdg/<AppName> or $XDG_CONFIG_DIRS[i]/<AppName> for each value in
                    $XDG_CONFIG_DIRS
        Win *:      same as site_data_dir
        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)

    For Unix, this is using the $XDG_CONFIG_DIRS[0] default, if multipath=False

    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
    """
    if system in ["win32", "darwin"]:
        path = site_data_dir(appname, appauthor)
        if appname and version:
            path = os.path.join(path, version)
    else:
        # XDG default for $XDG_CONFIG_DIRS
        # only first, if multipath is False
        path = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
        if appname:
            if version:
                appname = os.path.join(appname, version)
            pathlist = [os.sep.join([x, appname]) for x in pathlist]

        if multipath:
            path = os.pathsep.join(pathlist)
        else:
            path = pathlist[0]
    return path 

def site_config_dir(appname=None, appauthor=None, version=None, multipath=False):
    """Return full path to the user-shared data dir for this application.

        "appname" is the name of application.
            If None, just the system directory is returned.
        "appauthor" (only used on Windows) is the name of the
            appauthor or distributing body for this application. Typically
            it is the owning company name. This falls back to appname. You may
            pass False to disable it.
        "version" is an optional version path element to append to the
            path. You might want to use this if you want multiple versions
            of your app to be able to run independently. If used, this
            would typically be "<major>.<minor>".
            Only applied when appname is present.
        "multipath" is an optional parameter only applicable to *nix
            which indicates that the entire list of config dirs should be
            returned. By default, the first item from XDG_CONFIG_DIRS is
            returned, or '/etc/xdg/<AppName>', if XDG_CONFIG_DIRS is not set

    Typical user data directories are:
        macOS:      same as site_data_dir
        Unix:       /etc/xdg/<AppName> or $XDG_CONFIG_DIRS[i]/<AppName> for each value in
                    $XDG_CONFIG_DIRS
        Win *:      same as site_data_dir
        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)

    For Unix, this is using the $XDG_CONFIG_DIRS[0] default, if multipath=False

    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
    """
    if system in ["win32", "darwin"]:
        path = site_data_dir(appname, appauthor)
        if appname and version:
            path = os.path.join(path, version)
    else:
        # XDG default for $XDG_CONFIG_DIRS
        # only first, if multipath is False
        path = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
        if appname:
            if version:
                appname = os.path.join(appname, version)
            pathlist = [os.sep.join([x, appname]) for x in pathlist]

        if multipath:
            path = os.pathsep.join(pathlist)
        else:
            path = pathlist[0]
    return path 

def get_site_dirs():
    # return a list of 'site' dirs
    sitedirs = [_f for _f in os.environ.get('PYTHONPATH',
                                            '').split(os.pathsep) if _f]
    prefixes = [sys.prefix]
    if sys.exec_prefix != sys.prefix:
        prefixes.append(sys.exec_prefix)
    for prefix in prefixes:
        if prefix:
            if sys.platform in ('os2emx', 'riscos'):
                sitedirs.append(os.path.join(prefix, "Lib", "site-packages"))
            elif os.sep == '/':
                sitedirs.extend([
                    os.path.join(
                        prefix,
                        "lib",
                        "python" + sys.version[:3],
                        "site-packages",
                    ),
                    os.path.join(prefix, "lib", "site-python"),
                ])
            else:
                sitedirs.extend([
                    prefix,
                    os.path.join(prefix, "lib", "site-packages"),
                ])
            if sys.platform == 'darwin':
                # for framework builds *only* we add the standard Apple
                # locations. Currently only per-user, but /Library and
                # /Network/Library could be added too
                if 'Python.framework' in prefix:
                    home = os.environ.get('HOME')
                    if home:
                        home_sp = os.path.join(
                            home,
                            'Library',
                            'Python',
                            sys.version[:3],
                            'site-packages',
                        )
                        sitedirs.append(home_sp)
    lib_paths = get_path('purelib'), get_path('platlib')
    for site_lib in lib_paths:
        if site_lib not in sitedirs:
            sitedirs.append(site_lib)

    if site.ENABLE_USER_SITE:
        sitedirs.append(site.USER_SITE)

    try:
        sitedirs.extend(site.getsitepackages())
    except AttributeError:
        pass

    sitedirs = list(map(normalize_path, sitedirs))

    return sitedirs 

def _script():
    help = """\
    %s [--user-base] [--user-site]

    Without arguments print some useful information
    With arguments print the value of USER_BASE and/or USER_SITE separated
    by '%s'.

    Exit codes with --user-base or --user-site:
      0 - user site directory is enabled
      1 - user site directory is disabled by user
      2 - uses site directory is disabled by super user
          or for security reasons
     >2 - unknown error
    """
    args = sys.argv[1:]
    if not args:
        print("sys.path = [")
        for dir in sys.path:
            print("    %r," % (dir,))
        print("]")
        def exists(path):
            if os.path.isdir(path):
                return "exists"
            else:
                return "doesn't exist"
        print("USER_BASE: %r (%s)" % (USER_BASE, exists(USER_BASE)))
        print("USER_SITE: %r (%s)" % (USER_SITE, exists(USER_BASE)))
        print("ENABLE_USER_SITE: %r" %  ENABLE_USER_SITE)
        sys.exit(0)

    buffer = []
    if '--user-base' in args:
        buffer.append(USER_BASE)
    if '--user-site' in args:
        buffer.append(USER_SITE)

    if buffer:
        print(os.pathsep.join(buffer))
        if ENABLE_USER_SITE:
            sys.exit(0)
        elif ENABLE_USER_SITE is False:
            sys.exit(1)
        elif ENABLE_USER_SITE is None:
            sys.exit(2)
        else:
            sys.exit(3)
    else:
        import textwrap
        print(textwrap.dedent(help % (sys.argv[0], os.pathsep)))
        sys.exit(10) 

def site_config_dir(appname=None, appauthor=None, version=None, multipath=False):
    r"""Return full path to the user-shared data dir for this application.

        "appname" is the name of application.
            If None, just the system directory is returned.
        "appauthor" (only used on Windows) is the name of the
            appauthor or distributing body for this application. Typically
            it is the owning company name. This falls back to appname. You may
            pass False to disable it.
        "version" is an optional version path element to append to the
            path. You might want to use this if you want multiple versions
            of your app to be able to run independently. If used, this
            would typically be "<major>.<minor>".
            Only applied when appname is present.
        "multipath" is an optional parameter only applicable to *nix
            which indicates that the entire list of config dirs should be
            returned. By default, the first item from XDG_CONFIG_DIRS is
            returned, or '/etc/xdg/<AppName>', if XDG_CONFIG_DIRS is not set

    Typical site config directories are:
        Mac OS X:   same as site_data_dir
        Unix:       /etc/xdg/<AppName> or $XDG_CONFIG_DIRS[i]/<AppName> for each value in
                    $XDG_CONFIG_DIRS
        Win *:      same as site_data_dir
        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)

    For Unix, this is using the $XDG_CONFIG_DIRS[0] default, if multipath=False

    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
    """
    if system in ["win32", "darwin"]:
        path = site_data_dir(appname, appauthor)
        if appname and version:
            path = os.path.join(path, version)
    else:
        # XDG default for $XDG_CONFIG_DIRS
        # only first, if multipath is False
        path = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
        if appname:
            if version:
                appname = os.path.join(appname, version)
            pathlist = [os.sep.join([x, appname]) for x in pathlist]

        if multipath:
            path = os.pathsep.join(pathlist)
        else:
            path = pathlist[0]
    return path 

def site_config_dir(appname=None, appauthor=None, version=None, multipath=False):
    """Return full path to the user-shared data dir for this application.

        "appname" is the name of application.
            If None, just the system directory is returned.
        "appauthor" (only used on Windows) is the name of the
            appauthor or distributing body for this application. Typically
            it is the owning company name. This falls back to appname. You may
            pass False to disable it.
        "version" is an optional version path element to append to the
            path. You might want to use this if you want multiple versions
            of your app to be able to run independently. If used, this
            would typically be "<major>.<minor>".
            Only applied when appname is present.
        "multipath" is an optional parameter only applicable to *nix
            which indicates that the entire list of config dirs should be
            returned. By default, the first item from XDG_CONFIG_DIRS is
            returned, or '/etc/xdg/<AppName>', if XDG_CONFIG_DIRS is not set

    Typical user data directories are:
        Mac OS X:   same as site_data_dir
        Unix:       /etc/xdg/<AppName> or $XDG_CONFIG_DIRS[i]/<AppName> for each value in
                    $XDG_CONFIG_DIRS
        Win *:      same as site_data_dir
        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)

    For Unix, this is using the $XDG_CONFIG_DIRS[0] default, if multipath=False

    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
    """
    if system in ["win32", "darwin"]:
        path = site_data_dir(appname, appauthor)
        if appname and version:
            path = os.path.join(path, version)
    else:
        # XDG default for $XDG_CONFIG_DIRS
        # only first, if multipath is False
        path = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
        if appname:
            if version:
                appname = os.path.join(appname, version)
            pathlist = [os.sep.join([x, appname]) for x in pathlist]

        if multipath:
            path = os.pathsep.join(pathlist)
        else:
            path = pathlist[0]
    return path 

def site_config_dir(appname=None, appauthor=None, version=None, multipath=False):
    """Return full path to the user-shared data dir for this application.

        "appname" is the name of application.
            If None, just the system directory is returned.
        "appauthor" (only used on Windows) is the name of the
            appauthor or distributing body for this application. Typically
            it is the owning company name. This falls back to appname. You may
            pass False to disable it.
        "version" is an optional version path element to append to the
            path. You might want to use this if you want multiple versions
            of your app to be able to run independently. If used, this
            would typically be "<major>.<minor>".
            Only applied when appname is present.
        "multipath" is an optional parameter only applicable to *nix
            which indicates that the entire list of config dirs should be
            returned. By default, the first item from XDG_CONFIG_DIRS is
            returned, or '/etc/xdg/<AppName>', if XDG_CONFIG_DIRS is not set

    Typical user data directories are:
        macOS:      same as site_data_dir
        Unix:       /etc/xdg/<AppName> or $XDG_CONFIG_DIRS[i]/<AppName> for each value in
                    $XDG_CONFIG_DIRS
        Win *:      same as site_data_dir
        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)

    For Unix, this is using the $XDG_CONFIG_DIRS[0] default, if multipath=False

    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
    """
    if system in ["win32", "darwin"]:
        path = site_data_dir(appname, appauthor)
        if appname and version:
            path = os.path.join(path, version)
    else:
        # XDG default for $XDG_CONFIG_DIRS
        # only first, if multipath is False
        path = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
        if appname:
            if version:
                appname = os.path.join(appname, version)
            pathlist = [os.sep.join([x, appname]) for x in pathlist]

        if multipath:
            path = os.pathsep.join(pathlist)
        else:
            path = pathlist[0]
    return path 

def find_in_path(name, path):
    "Find a file in a search path"
    # adapted fom http://code.activestate.com/recipes/52224-find-a-file-given-a-search-path/
    for dir in path.split(os.pathsep):
        binpath = pjoin(dir, name)
        if os.path.exists(binpath):
            return os.path.abspath(binpath)
    return None


# def locate_cuda():
#     """Locate the CUDA environment on the system
#
#     Returns a dict with keys 'home', 'nvcc', 'include', and 'lib64'
#     and values giving the absolute path to each directory.
#
#     Starts by looking for the CUDAHOME env variable. If not found, everything
#     is based on finding 'nvcc' in the PATH.
#     """
#
#     # first check if the CUDAHOME env variable is in use
#     if 'CUDAHOME' in os.environ:
#         home = os.environ['CUDAHOME']
#         nvcc = pjoin(home, 'bin', 'nvcc')
#     else:
#         # otherwise, search the PATH for NVCC
#         default_path = pjoin(os.sep, 'usr', 'local', 'cuda', 'bin')
#         nvcc = find_in_path('nvcc', os.environ['PATH'] + os.pathsep + default_path)
#         if nvcc is None:
#             raise EnvironmentError('The nvcc binary could not be '
#                                    'located in your $PATH. Either add it to your path, or set $CUDAHOME')
#         home = os.path.dirname(os.path.dirname(nvcc))
#
#     cudaconfig = {'home': home, 'nvcc': nvcc,
#                   'include': pjoin(home, 'include'),
#                   'lib64': pjoin(home, 'lib64')}
#     for k, v in cudaconfig.iteritems():
#         if not os.path.exists(v):
#             raise EnvironmentError('The CUDA %s path could not be located in %s' % (k, v))
#
#     return cudaconfig


# CUDA = locate_cuda()

# Obtain the numpy include directory.  This logic works across numpy versions. 

def __init__(self, parents=None):
        self.parsed = False
        if not parents:
            parents = []
        ArgumentParser.__init__(self, prog='mx', parents=parents, add_help=len(parents) != 0, formatter_class=lambda prog: HelpFormatter(prog, max_help_position=32, width=120))

        if len(parents) != 0:
            # Arguments are inherited from the parents
            return

        self.add_argument('-v', action='store_true', dest='verbose', help='enable verbose output')
        self.add_argument('-V', action='store_true', dest='very_verbose', help='enable very verbose output')
        self.add_argument('--no-warning', action='store_false', dest='warn', help='disable warning messages')
        self.add_argument('--quiet', action='store_true', help='disable log messages')
        self.add_argument('-y', action='store_const', const='y', dest='answer', help='answer \'y\' to all questions asked')
        self.add_argument('-n', action='store_const', const='n', dest='answer', help='answer \'n\' to all questions asked')
        self.add_argument('-p', '--primary-suite-path', help='set the primary suite directory', metavar='<path>')
        self.add_argument('--dbg', type=int, dest='java_dbg_port', help='make Java processes wait on <port> for a debugger', metavar='<port>')
        self.add_argument('-d', action='store_const', const=8000, dest='java_dbg_port', help='alias for "-dbg 8000"')
        self.add_argument('--attach', dest='attach', help='Connect to existing server running at [<address>:]<port>')
        self.add_argument('--backup-modified', action='store_true', help='backup generated files if they pre-existed and are modified')
        self.add_argument('--cp-pfx', dest='cp_prefix', help='class path prefix', metavar='<arg>')
        self.add_argument('--cp-sfx', dest='cp_suffix', help='class path suffix', metavar='<arg>')
        jargs = self.add_mutually_exclusive_group()
        jargs.add_argument('-J', dest='java_args', help='Java VM arguments (e.g. "-J-dsa")', metavar='<arg>')
        jargs.add_argument('--J', dest='java_args_legacy', help='Java VM arguments (e.g. "--J @-dsa")', metavar='@<args>')
        jpargs = self.add_mutually_exclusive_group()
        jpargs.add_argument('-P', action='append', dest='java_args_pfx', help='prefix Java VM arguments (e.g. "-P-dsa")', metavar='<arg>', default=[])
        jpargs.add_argument('--Jp', action='append', dest='java_args_pfx_legacy', help='prefix Java VM arguments (e.g. --Jp @-dsa)', metavar='@<args>', default=[])
        jaargs = self.add_mutually_exclusive_group()
        jaargs.add_argument('-A', action='append', dest='java_args_sfx', help='suffix Java VM arguments (e.g. "-A-dsa")', metavar='<arg>', default=[])
        jaargs.add_argument('--Ja', action='append', dest='java_args_sfx_legacy', help='suffix Java VM arguments (e.g. --Ja @-dsa)', metavar='@<args>', default=[])
        self.add_argument('--user-home', help='users home directory', metavar='<path>', default=os.path.expanduser('~'))
        self.add_argument('--java-home', help='primary JDK directory (must be JDK 7 or later)', metavar='<path>')
        self.add_argument('--jacoco', help='instruments selected classes using JaCoCo', default='off', choices=['off', 'on', 'append'])
        self.add_argument('--jacoco-whitelist-package', help='only include classes in the specified package', metavar='<package>', action='append', default=[])
        self.add_argument('--jacoco-exclude-annotation', help='exclude classes with annotation from JaCoCo instrumentation', metavar='<annotation>', action='append', default=[])
        self.add_argument('--extra-java-homes', help='secondary JDK directories separated by "' + os.pathsep + '"', metavar='<path>')
        self.add_argument('--strict-compliance', action='store_true', dest='strict_compliance', help='use JDK matching a project\'s Java compliance when compiling (legacy - this is the only supported mode)', default=True)
        self.add_argument('--ignore-project', action='append', dest='ignored_projects', help='name of project to ignore', metavar='<name>', default=[])
        self.add_argument('--kill-with-sigquit', action='store_true', dest='killwithsigquit', help='send sigquit first before killing child processes')
        self.add_argument('--suite', action='append', dest='specific_suites', help='limit command to the given suite', metavar='<name>', default=[])
        self.add_argument('--suitemodel', help='mechanism for locating imported suites', metavar='<arg>')
        self.add_argument('--primary', action='store_true', help='limit command to primary suite')
        self.add_argument('--dynamicimports', action='append', dest='dynamic_imports', help='dynamically import suite <name>', metavar='<name>', default=[])
        self.add_argument('--no-download-progress', action='store_true', help='disable download progress meter')
        self.add_argument('--version', action='store_true', help='print version and exit')
        self.add_argument('--mx-tests', action='store_true', help='load mxtests suite (mx debugging)')
        self.add_argument('--jdk', action='store', help='JDK to use for the "java" command', metavar='<tag:compliance>')
        self.add_argument('--version-conflict-resolution', dest='version_conflict_resolution', action='store', help='resolution mechanism used when a suite is imported with different versions', default='suite', choices=['suite', 'none', 'latest', 'latest_all', 'ignore'])
        self.add_argument('-c', '--max-cpus', action='store', type=int, dest='cpu_count', help='the maximum number of cpus to use during build', metavar='<cpus>', default=None)
        self.add_argument('--strip-jars', action='store_true', help='produce and use stripped jars in all mx commands.')
        self.add_argument('--env', dest='additional_env', help='load an additional env file in the mx dir of the primary suite', metavar='<name>')
        self.add_argument('--trust-http', action='store_true', help='Suppress warning about downloading from non-https sources')
        self.add_argument('--multiarch', action='store_true', help='enable all architectures of native multiarch projects (not just the host architecture)')
        self.add_argument('--dump-task-stats', help='Dump CSV formatted start/end timestamps for each build task. If set to \'-\' it will print it to stdout, otherwise the CSV will be written to <path>', metavar='<path>', default=None)

        if not is_windows():
            # Time outs are (currently) implemented with Unix specific functionality
            self.add_argument('--timeout', help='timeout (in seconds) for command', type=int, default=0, metavar='<secs>')
            self.add_argument('--ptimeout', help='timeout (in seconds) for subprocesses', type=int, default=0, metavar='<secs>')