Python sys.base_exec_prefix() Examples

def test_user_similar(self):
        # Issue #8759: make sure the posix scheme for the users
        # is similar to the global posix_prefix one
        base = get_config_var('base')
        user = get_config_var('userbase')
        # the global scheme mirrors the distinction between prefix and
        # exec-prefix but not the user scheme, so we have to adapt the paths
        # before comparing (issue #9100)
        adapt = sys.base_prefix != sys.base_exec_prefix
        for name in ('stdlib', 'platstdlib', 'purelib', 'platlib'):
            global_path = get_path(name, 'posix_prefix')
            if adapt:
                global_path = global_path.replace(sys.exec_prefix, sys.base_prefix)
                base = base.replace(sys.exec_prefix, sys.base_prefix)
            elif sys.base_prefix != sys.prefix:
                # virtual environment? Likewise, we have to adapt the paths
                # before comparing
                global_path = global_path.replace(sys.base_prefix, sys.prefix)
                base = base.replace(sys.base_prefix, sys.prefix)
            user_path = get_path(name, 'posix_user')
            self.assertEqual(user_path, global_path.replace(base, user, 1)) 

def test_prefixes(self):
        """
        Test that the prefix values are as expected.
        """
        #check our prefixes
        self.assertEqual(sys.base_prefix, sys.prefix)
        self.assertEqual(sys.base_exec_prefix, sys.exec_prefix)

        # check a venv's prefixes
        rmtree(self.env_dir)
        self.run_with_capture(venv.create, self.env_dir)
        envpy = os.path.join(self.env_dir, self.bindir, self.exe)
        cmd = [envpy, '-c', None]
        for prefix, expected in (
            ('prefix', self.env_dir),
            ('prefix', self.env_dir),
            ('base_prefix', sys.prefix),
            ('base_exec_prefix', sys.exec_prefix)):
            cmd[2] = 'import sys; print(sys.%s)' % prefix
            p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
                                 stderr=subprocess.PIPE)
            out, err = p.communicate()
            self.assertEqual(out.strip(), expected.encode()) 

def test_prefixes(self):
        """
        Test that the prefix values are as expected.
        """
        #check our prefixes
        self.assertEqual(sys.base_prefix, sys.prefix)
        self.assertEqual(sys.base_exec_prefix, sys.exec_prefix)

        # check a venv's prefixes
        rmtree(self.env_dir)
        self.run_with_capture(venv.create, self.env_dir)
        envpy = os.path.join(self.env_dir, self.bindir, self.exe)
        cmd = [envpy, '-c', None]
        for prefix, expected in (
            ('prefix', self.env_dir),
            ('prefix', self.env_dir),
            ('base_prefix', sys.prefix),
            ('base_exec_prefix', sys.exec_prefix)):
            cmd[2] = 'import sys; print(sys.%s)' % prefix
            p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
                                 stderr=subprocess.PIPE)
            out, err = p.communicate()
            self.assertEqual(out.strip(), expected.encode()) 

def test_user_similar(self):
        # Issue #8759: make sure the posix scheme for the users
        # is similar to the global posix_prefix one
        base = get_config_var('base')
        user = get_config_var('userbase')
        # the global scheme mirrors the distinction between prefix and
        # exec-prefix but not the user scheme, so we have to adapt the paths
        # before comparing (issue #9100)
        adapt = sys.base_prefix != sys.base_exec_prefix
        for name in ('stdlib', 'platstdlib', 'purelib', 'platlib'):
            global_path = get_path(name, 'posix_prefix')
            if adapt:
                global_path = global_path.replace(sys.exec_prefix, sys.base_prefix)
                base = base.replace(sys.exec_prefix, sys.base_prefix)
            elif sys.base_prefix != sys.prefix:
                # virtual environment? Likewise, we have to adapt the paths
                # before comparing
                global_path = global_path.replace(sys.base_prefix, sys.prefix)
                base = base.replace(sys.base_prefix, sys.prefix)
            user_path = get_path(name, 'posix_user')
            self.assertEqual(user_path, global_path.replace(base, user, 1)) 

def test_prefixes(self):
        """
        Test that the prefix values are as expected.
        """
        #check our prefixes
        self.assertEqual(sys.base_prefix, sys.prefix)
        self.assertEqual(sys.base_exec_prefix, sys.exec_prefix)

        # check a venv's prefixes
        rmtree(self.env_dir)
        self.run_with_capture(venv.create, self.env_dir)
        envpy = os.path.join(self.env_dir, self.bindir, self.exe)
        cmd = [envpy, '-c', None]
        for prefix, expected in (
            ('prefix', self.env_dir),
            ('prefix', self.env_dir),
            ('base_prefix', sys.prefix),
            ('base_exec_prefix', sys.exec_prefix)):
            cmd[2] = 'import sys; print(sys.%s)' % prefix
            p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
                                 stderr=subprocess.PIPE)
            out, err = p.communicate()
            self.assertEqual(out.strip(), expected.encode()) 

def test_coverage(coverdir):
    trace = support.import_module('trace')
    tracer=trace.Trace(ignoredirs=[sys.base_prefix, sys.base_exec_prefix,],
                        trace=0, count=1)
    tracer.run('import importlib; importlib.reload(cmd); test_main()')
    r=tracer.results()
    print("Writing coverage results...")
    r.write_results(show_missing=True, summary=True, coverdir=coverdir) 

def test_coverage(coverdir):
    trace = support.import_module('trace')
    tracer=trace.Trace(ignoredirs=[sys.base_prefix, sys.base_exec_prefix,],
                        trace=0, count=1)
    tracer.run('import importlib; importlib.reload(cmd); test_main()')
    r=tracer.results()
    print("Writing coverage results...")
    r.write_results(show_missing=True, summary=True, coverdir=coverdir) 

def get_python_inc(plat_specific=0, prefix=None):
    """Return the directory containing installed Python header files.

    If 'plat_specific' is false (the default), this is the path to the
    non-platform-specific header files, i.e. Python.h and so on;
    otherwise, this is the path to platform-specific header files
    (namely pyconfig.h).

    If 'prefix' is supplied, use it instead of sys.base_prefix or
    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
    """
    if prefix is None:
        prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
    if IS_PYPY:
        return os.path.join(prefix, 'include')
    elif os.name == "posix":
        if python_build:
            # Assume the executable is in the build directory.  The
            # pyconfig.h file should be in the same directory.  Since
            # the build directory may not be the source directory, we
            # must use "srcdir" from the makefile to find the "Include"
            # directory.
            if plat_specific:
                return _sys_home or project_base
            else:
                incdir = os.path.join(get_config_var('srcdir'), 'Include')
                return os.path.normpath(incdir)
        python_dir = 'python' + get_python_version() + build_flags
        return os.path.join(prefix, "include", python_dir)
    elif os.name == "nt":
        if python_build:
            # Include both the include and PC dir to ensure we can find
            # pyconfig.h
            return (os.path.join(prefix, "include") + os.path.pathsep +
                    os.path.join(prefix, "PC"))
        return os.path.join(prefix, "include")
    else:
        raise DistutilsPlatformError(
            "I don't know where Python installs its C header files "
            "on platform '%s'" % os.name) 

def is_std_or_local_lib(name):
    """Check whether it is stdlib module.
    True if std lib
    False if installed package
    str if local library
    """
    exist = True
    module_info = ('', '', '')
    try:
        module_info = imp.find_module(name)
    except ImportError:
        try:
            # __import__(name)
            importlib.import_module(name)
            module_info = imp.find_module(name)
            sys.modules.pop(name)
        except ImportError:
            exist = False
    # Testcase: ResourceWarning
    if isinstance(module_info[0], FileType):
        module_info[0].close()
    mpath = module_info[1]
    if exist and mpath is not None:
        if ('site-packages' in mpath or
                'dist-packages' in mpath or
                'bin/' in mpath and mpath.endswith('.py')):
            exist = False
        elif ((sys.prefix not in mpath) and
              (sys.base_exec_prefix not in mpath) and
              (sys.base_prefix not in mpath)):
            exist = mpath

    return exist 

def get_python_inc(plat_specific=0, prefix=None):
    """Return the directory containing installed Python header files.

    If 'plat_specific' is false (the default), this is the path to the
    non-platform-specific header files, i.e. Python.h and so on;
    otherwise, this is the path to platform-specific header files
    (namely pyconfig.h).

    If 'prefix' is supplied, use it instead of sys.base_prefix or
    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
    """
    if prefix is None:
        prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
    if os.name == "posix":
        if python_build:
            # Assume the executable is in the build directory.  The
            # pyconfig.h file should be in the same directory.  Since
            # the build directory may not be the source directory, we
            # must use "srcdir" from the makefile to find the "Include"
            # directory.
            if plat_specific:
                return _sys_home or project_base
            else:
                incdir = os.path.join(get_config_var('srcdir'), 'Include')
                return os.path.normpath(incdir)
        python_dir = 'python' + get_python_version() + build_flags
        return os.path.join(prefix, "include", python_dir)
    elif os.name == "nt":
        return os.path.join(prefix, "include")
    else:
        raise DistutilsPlatformError(
            "I don't know where Python installs its C header files "
            "on platform '%s'" % os.name) 

def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
    """Return the directory containing the Python library (standard or
    site additions).

    If 'plat_specific' is true, return the directory containing
    platform-specific modules, i.e. any module from a non-pure-Python
    module distribution; otherwise, return the platform-shared library
    directory.  If 'standard_lib' is true, return the directory
    containing standard Python library modules; otherwise, return the
    directory for site-specific modules.

    If 'prefix' is supplied, use it instead of sys.base_prefix or
    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
    """
    if prefix is None:
        if standard_lib:
            prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
        else:
            prefix = plat_specific and EXEC_PREFIX or PREFIX

    if os.name == "posix":
        libpython = os.path.join(prefix,
                                 "lib", "python" + get_python_version())
        if standard_lib:
            return libpython
        else:
            return os.path.join(libpython, "site-packages")
    elif os.name == "nt":
        if standard_lib:
            return os.path.join(prefix, "Lib")
        else:
            return os.path.join(prefix, "Lib", "site-packages")
    else:
        raise DistutilsPlatformError(
            "I don't know where Python installs its library "
            "on platform '%s'" % os.name) 

def getdocloc(self, object,
                  basedir=os.path.join(sys.base_exec_prefix, "lib",
                                       "python%d.%d" %  sys.version_info[:2])):
        """Return the location of module docs or None"""

        try:
            file = inspect.getabsfile(object)
        except TypeError:
            file = '(built-in)'

        docloc = os.environ.get("PYTHONDOCS", self.PYTHONDOCS)

        basedir = os.path.normcase(basedir)
        if (isinstance(object, type(os)) and
            (object.__name__ in ('errno', 'exceptions', 'gc', 'imp',
                                 'marshal', 'posix', 'signal', 'sys',
                                 '_thread', 'zipimport') or
             (file.startswith(basedir) and
              not file.startswith(os.path.join(basedir, 'site-packages')))) and
            object.__name__ not in ('xml.etree', 'test.pydoc_mod')):
            if docloc.startswith(("http://", "https://")):
                docloc = "%s/%s" % (docloc.rstrip("/"), object.__name__.lower())
            else:
                docloc = os.path.join(docloc, object.__name__.lower() + ".html")
        else:
            docloc = None
        return docloc

# -------------------------------------------- HTML documentation generator 

def test_coverage_ignore(self):
        # Ignore all files, nothing should be traced nor printed
        libpath = os.path.normpath(os.path.dirname(os.__file__))
        # sys.prefix does not work when running from a checkout
        tracer = trace.Trace(ignoredirs=[sys.base_prefix, sys.base_exec_prefix,
                             libpath], trace=0, count=1)
        with captured_stdout() as stdout:
            self._coverage(tracer)
        if os.path.exists(TESTFN):
            files = os.listdir(TESTFN)
            self.assertEqual(files, ['_importlib.cover'])  # Ignore __import__ 

def test_coverage(coverdir):
    trace = support.import_module('trace')
    tracer = trace.Trace(ignoredirs=[sys.base_prefix, sys.base_exec_prefix,],
                         trace=0, count=1)
    tracer.run('test_main()')
    r = tracer.results()
    print('Writing coverage results...')
    r.write_results(show_missing=True, summary=True,
                    coverdir=coverdir) 

def test_coverage(coverdir):
    trace = support.import_module('trace')
    tracer = trace.Trace(ignoredirs=[sys.base_prefix, sys.base_exec_prefix,],
                         trace=0, count=1)
    tracer.run('test_main()')
    r = tracer.results()
    print('Writing coverage results...')
    r.write_results(show_missing=True, summary=True,
                    coverdir=coverdir) 

def get_base_executable():
    if sys.exec_prefix == sys.base_exec_prefix:
        return sys.executable

    if platform.system() == "Windows":
        result = sys.base_exec_prefix + "\\" + os.path.basename(sys.executable)
        result = normpath_with_actual_case(result)
    else:
        result = sys.executable.replace(sys.exec_prefix, sys.base_exec_prefix)

    if not os.path.isfile(result):
        raise RuntimeError("Can't locate base executable")

    return result 

def get_python_inc(plat_specific=0, prefix=None):
    """Return the directory containing installed Python header files.

    If 'plat_specific' is false (the default), this is the path to the
    non-platform-specific header files, i.e. Python.h and so on;
    otherwise, this is the path to platform-specific header files
    (namely pyconfig.h).

    If 'prefix' is supplied, use it instead of sys.base_prefix or
    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
    """
    if prefix is None:
        prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
    if os.name == "posix":
        if python_build:
            # Assume the executable is in the build directory.  The
            # pyconfig.h file should be in the same directory.  Since
            # the build directory may not be the source directory, we
            # must use "srcdir" from the makefile to find the "Include"
            # directory.
            if plat_specific:
                return _sys_home or project_base
            else:
                incdir = os.path.join(get_config_var('srcdir'), 'Include')
                return os.path.normpath(incdir)
        python_dir = 'python' + get_python_version() + build_flags
        return os.path.join(prefix, "include", python_dir)
    elif os.name == "nt":
        if python_build:
            # Include both the include and PC dir to ensure we can find
            # pyconfig.h
            return (os.path.join(prefix, "include") + os.path.pathsep +
                    os.path.join(prefix, "PC"))
        return os.path.join(prefix, "include")
    else:
        raise DistutilsPlatformError(
            "I don't know where Python installs its C header files "
            "on platform '%s'" % os.name) 

def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
    """Return the directory containing the Python library (standard or
    site additions).

    If 'plat_specific' is true, return the directory containing
    platform-specific modules, i.e. any module from a non-pure-Python
    module distribution; otherwise, return the platform-shared library
    directory.  If 'standard_lib' is true, return the directory
    containing standard Python library modules; otherwise, return the
    directory for site-specific modules.

    If 'prefix' is supplied, use it instead of sys.base_prefix or
    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
    """
    if prefix is None:
        if standard_lib:
            prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
        else:
            prefix = plat_specific and EXEC_PREFIX or PREFIX

    if os.name == "posix":
        libpython = os.path.join(prefix,
                                 "lib", "python" + get_python_version())
        if standard_lib:
            return libpython
        else:
            return os.path.join(libpython, "site-packages")
    elif os.name == "nt":
        if standard_lib:
            return os.path.join(prefix, "Lib")
        else:
            return os.path.join(prefix, "Lib", "site-packages")
    else:
        raise DistutilsPlatformError(
            "I don't know where Python installs its library "
            "on platform '%s'" % os.name) 

def getdocloc(self, object,
                  basedir=os.path.join(sys.base_exec_prefix, "lib",
                                       "python%d.%d" %  sys.version_info[:2])):
        """Return the location of module docs or None"""

        try:
            file = inspect.getabsfile(object)
        except TypeError:
            file = '(built-in)'

        docloc = os.environ.get("PYTHONDOCS", self.PYTHONDOCS)

        basedir = os.path.normcase(basedir)
        if (isinstance(object, type(os)) and
            (object.__name__ in ('errno', 'exceptions', 'gc', 'imp',
                                 'marshal', 'posix', 'signal', 'sys',
                                 '_thread', 'zipimport') or
             (file.startswith(basedir) and
              not file.startswith(os.path.join(basedir, 'site-packages')))) and
            object.__name__ not in ('xml.etree', 'test.pydoc_mod')):
            if docloc.startswith(("http://", "https://")):
                docloc = "%s/%s" % (docloc.rstrip("/"), object.__name__.lower())
            else:
                docloc = os.path.join(docloc, object.__name__.lower() + ".html")
        else:
            docloc = None
        return docloc

# -------------------------------------------- HTML documentation generator 

def test_coverage_ignore(self):
        # Ignore all files, nothing should be traced nor printed
        libpath = os.path.normpath(os.path.dirname(os.__file__))
        # sys.prefix does not work when running from a checkout
        tracer = trace.Trace(ignoredirs=[sys.base_prefix, sys.base_exec_prefix,
                             libpath], trace=0, count=1)
        with captured_stdout() as stdout:
            self._coverage(tracer)
        if os.path.exists(TESTFN):
            files = os.listdir(TESTFN)
            self.assertEqual(files, ['_importlib.cover'])  # Ignore __import__ 

def test_coverage(coverdir):
    trace = support.import_module('trace')
    tracer = trace.Trace(ignoredirs=[sys.base_prefix, sys.base_exec_prefix,],
                         trace=0, count=1)
    tracer.run('test_main()')
    r = tracer.results()
    print('Writing coverage results...')
    r.write_results(show_missing=True, summary=True,
                    coverdir=coverdir) 

def test_coverage(coverdir):
    trace = support.import_module('trace')
    tracer=trace.Trace(ignoredirs=[sys.base_prefix, sys.base_exec_prefix,],
                        trace=0, count=1)
    tracer.run('import importlib; importlib.reload(cmd); test_main()')
    r=tracer.results()
    print("Writing coverage results...")
    r.write_results(show_missing=True, summary=True, coverdir=coverdir) 

def _find_w9xpopen(self):
            """Find and return absolut path to w9xpopen.exe"""
            w9xpopen = os.path.join(
                            os.path.dirname(_winapi.GetModuleFileName(0)),
                                    "w9xpopen.exe")
            if not os.path.exists(w9xpopen):
                # Eeek - file-not-found - possibly an embedding
                # situation - see if we can locate it in sys.exec_prefix
                w9xpopen = os.path.join(os.path.dirname(sys.base_exec_prefix),
                                        "w9xpopen.exe")
                if not os.path.exists(w9xpopen):
                    raise RuntimeError("Cannot locate w9xpopen.exe, which is "
                                       "needed for Popen to work with your "
                                       "shell or platform.")
            return w9xpopen 

def start_mocking_service(self, service, port):
        if service in service_lut.keys():
            if self.servers[service]:
                self.stop_mocking_service(service)
            self.servers[service] = subprocess.Popen([
                '{}/bin/moto_server'.format(sys.base_exec_prefix),
                service,
                '-p{}'.format(port)
            ]) 

def get_python_inc(plat_specific=0, prefix=None):
    """Return the directory containing installed Python header files.

    If 'plat_specific' is false (the default), this is the path to the
    non-platform-specific header files, i.e. Python.h and so on;
    otherwise, this is the path to platform-specific header files
    (namely pyconfig.h).

    If 'prefix' is supplied, use it instead of sys.base_prefix or
    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
    """
    if prefix is None:
        prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
    if os.name == "posix":
        if python_build:
            # Assume the executable is in the build directory.  The
            # pyconfig.h file should be in the same directory.  Since
            # the build directory may not be the source directory, we
            # must use "srcdir" from the makefile to find the "Include"
            # directory.
            base = _sys_home or project_base
            if plat_specific:
                return base
            if _sys_home:
                incdir = os.path.join(_sys_home, get_config_var('AST_H_DIR'))
            else:
                incdir = os.path.join(get_config_var('srcdir'), 'Include')
            return os.path.normpath(incdir)
        python_dir = 'python' + get_python_version() + build_flags
        return os.path.join(prefix, "include", python_dir)
    elif os.name == "nt":
        return os.path.join(prefix, "include")
    else:
        raise DistutilsPlatformError(
            "I don't know where Python installs its C header files "
            "on platform '%s'" % os.name) 

def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
    """Return the directory containing the Python library (standard or
    site additions).

    If 'plat_specific' is true, return the directory containing
    platform-specific modules, i.e. any module from a non-pure-Python
    module distribution; otherwise, return the platform-shared library
    directory.  If 'standard_lib' is true, return the directory
    containing standard Python library modules; otherwise, return the
    directory for site-specific modules.

    If 'prefix' is supplied, use it instead of sys.base_prefix or
    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
    """
    if prefix is None:
        if standard_lib:
            prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
        else:
            prefix = plat_specific and EXEC_PREFIX or PREFIX

    if os.name == "posix":
        libpython = os.path.join(prefix,
                                 "lib", "python" + get_python_version())
        if standard_lib:
            return libpython
        else:
            return os.path.join(libpython, "site-packages")
    elif os.name == "nt":
        if standard_lib:
            return os.path.join(prefix, "Lib")
        else:
            if get_python_version() < "2.2":
                return prefix
            else:
                return os.path.join(prefix, "Lib", "site-packages")
    else:
        raise DistutilsPlatformError(
            "I don't know where Python installs its library "
            "on platform '%s'" % os.name) 

def get_python_inc(plat_specific=0, prefix=None):
    """Return the directory containing installed Python header files.

    If 'plat_specific' is false (the default), this is the path to the
    non-platform-specific header files, i.e. Python.h and so on;
    otherwise, this is the path to platform-specific header files
    (namely pyconfig.h).

    If 'prefix' is supplied, use it instead of sys.base_prefix or
    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
    """
    if prefix is None:
        prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
    if os.name == "posix":
        if python_build:
            # Assume the executable is in the build directory.  The
            # pyconfig.h file should be in the same directory.  Since
            # the build directory may not be the source directory, we
            # must use "srcdir" from the makefile to find the "Include"
            # directory.
            base = _sys_home or project_base
            if plat_specific:
                return base
            if _sys_home:
                incdir = os.path.join(_sys_home, get_config_var('AST_H_DIR'))
            else:
                incdir = os.path.join(get_config_var('srcdir'), 'Include')
            return os.path.normpath(incdir)
        python_dir = 'python' + get_python_version() + build_flags
        return os.path.join(prefix, "include", python_dir)
    elif os.name == "nt":
        return os.path.join(prefix, "include")
    else:
        raise DistutilsPlatformError(
            "I don't know where Python installs its C header files "
            "on platform '%s'" % os.name) 

def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
    """Return the directory containing the Python library (standard or
    site additions).

    If 'plat_specific' is true, return the directory containing
    platform-specific modules, i.e. any module from a non-pure-Python
    module distribution; otherwise, return the platform-shared library
    directory.  If 'standard_lib' is true, return the directory
    containing standard Python library modules; otherwise, return the
    directory for site-specific modules.

    If 'prefix' is supplied, use it instead of sys.base_prefix or
    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
    """
    if prefix is None:
        if standard_lib:
            prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
        else:
            prefix = plat_specific and EXEC_PREFIX or PREFIX

    if os.name == "posix":
        libpython = os.path.join(prefix,
                                 "lib", "python" + get_python_version())
        if standard_lib:
            return libpython
        else:
            return os.path.join(libpython, "site-packages")
    elif os.name == "nt":
        if standard_lib:
            return os.path.join(prefix, "Lib")
        else:
            return os.path.join(prefix, "Lib", "site-packages")
    else:
        raise DistutilsPlatformError(
            "I don't know where Python installs its library "
            "on platform '%s'" % os.name) 

def getdocloc(self, object):
        """Return the location of module docs or None"""

        try:
            file = inspect.getabsfile(object)
        except TypeError:
            file = '(built-in)'

        docloc = os.environ.get("PYTHONDOCS", self.PYTHONDOCS)

        basedir = os.path.join(sys.base_exec_prefix, "lib",
                               "python%d.%d" %  sys.version_info[:2])
        if (isinstance(object, type(os)) and
            (object.__name__ in ('errno', 'exceptions', 'gc', 'imp',
                                 'marshal', 'posix', 'signal', 'sys',
                                 '_thread', 'zipimport') or
             (file.startswith(basedir) and
              not file.startswith(os.path.join(basedir, 'site-packages')))) and
            object.__name__ not in ('xml.etree', 'test.pydoc_mod')):
            if docloc.startswith("http://"):
                docloc = "%s/%s" % (docloc.rstrip("/"), object.__name__)
            else:
                docloc = os.path.join(docloc, object.__name__ + ".html")
        else:
            docloc = None
        return docloc

# -------------------------------------------- HTML documentation generator 

def test_coverage(coverdir):
    trace = support.import_module('trace')
    tracer = trace.Trace(ignoredirs=[sys.base_prefix, sys.base_exec_prefix,],
                         trace=0, count=1)
    tracer.run('test_main()')
    r = tracer.results()
    print('Writing coverage results...')
    r.write_results(show_missing=True, summary=True,
                    coverdir=coverdir)