Python imp.get_suffixes() Examples

def find_msvcrt():
        """Return the name of the VC runtime dll"""
        version = _get_build_version()
        if version is None:
            # better be safe than sorry
            return None
        if version <= 6:
            clibname = 'msvcrt'
        else:
            clibname = 'msvcr%d' % (version * 10)

        # If python was built with in debug mode
        import imp
        if imp.get_suffixes()[0][0] == '_d.pyd':
            clibname += 'd'
        return clibname+'.dll' 

def find_module_in_dir(self, name, dir, allow_packages=1):
        if dir is None:
            return self.find_builtin_module(name)
        if allow_packages:
            fullname = self.hooks.path_join(dir, name)
            if self.hooks.path_isdir(fullname):
                stuff = self.find_module_in_dir("__init__", fullname, 0)
                if stuff:
                    file = stuff[0]
                    if file: file.close()
                    return None, fullname, ('', '', PKG_DIRECTORY)
        for info in self.hooks.get_suffixes():
            suff, mode, type = info
            fullname = self.hooks.path_join(dir, name+suff)
            try:
                fp = self.hooks.openfile(fullname, mode)
                return fp, fullname, info
            except self.hooks.openfile_error:
                pass
        return None 

def find_module_in_dir(self, name, dir, allow_packages=1):
        if dir is None:
            return self.find_builtin_module(name)
        if allow_packages:
            fullname = self.hooks.path_join(dir, name)
            if self.hooks.path_isdir(fullname):
                stuff = self.find_module_in_dir("__init__", fullname, 0)
                if stuff:
                    file = stuff[0]
                    if file: file.close()
                    return None, fullname, ('', '', PKG_DIRECTORY)
        for info in self.hooks.get_suffixes():
            suff, mode, type = info
            fullname = self.hooks.path_join(dir, name+suff)
            try:
                fp = self.hooks.openfile(fullname, mode)
                return fp, fullname, info
            except self.hooks.openfile_error:
                pass
        return None 

def getsourcefile(object):
    """Return the filename that can be used to locate an object's source.
    Return None if no way can be identified to get the source.
    """
    filename = getfile(object)
    if string.lower(filename[-4:]) in ('.pyc', '.pyo'):
        filename = filename[:-4] + '.py'
    for suffix, mode, kind in imp.get_suffixes():
        if 'b' in mode and string.lower(filename[-len(suffix):]) == suffix:
            # Looks like a binary file.  We want to only return a text file.
            return None
    if os.path.exists(filename):
        return filename
    # only return a non-existent filename if the module has a PEP 302 loader
    if hasattr(getmodule(object, filename), '__loader__'):
        return filename
    # or it is in the linecache
    if filename in linecache.cache:
        return filename 

def getsourcefile(object):
    """Return the filename that can be used to locate an object's source.
    Return None if no way can be identified to get the source.
    """
    filename = getfile(object)
    if string.lower(filename[-4:]) in ('.pyc', '.pyo'):
        filename = filename[:-4] + '.py'
    for suffix, mode, kind in imp.get_suffixes():
        if 'b' in mode and string.lower(filename[-len(suffix):]) == suffix:
            # Looks like a binary file.  We want to only return a text file.
            return None
    if os.path.exists(filename):
        return filename
    # only return a non-existent filename if the module has a PEP 302 loader
    if hasattr(getmodule(object, filename), '__loader__'):
        return filename
    # or it is in the linecache
    if filename in linecache.cache:
        return filename 

def find_msvcrt():
        """Return the name of the VC runtime dll"""
        version = _get_build_version()
        if version is None:
            # better be safe than sorry
            return None
        if version <= 6:
            clibname = 'msvcrt'
        else:
            clibname = 'msvcr%d' % (version * 10)

        # If python was built with in debug mode
        import imp
        if imp.get_suffixes()[0][0] == '_d.pyd':
            clibname += 'd'
        return clibname+'.dll' 

def find_module_in_dir(self, name, dir, allow_packages=1):
        if dir is None:
            return self.find_builtin_module(name)
        if allow_packages:
            fullname = self.hooks.path_join(dir, name)
            if self.hooks.path_isdir(fullname):
                stuff = self.find_module_in_dir("__init__", fullname, 0)
                if stuff:
                    file = stuff[0]
                    if file: file.close()
                    return None, fullname, ('', '', PKG_DIRECTORY)
        for info in self.hooks.get_suffixes():
            suff, mode, type = info
            fullname = self.hooks.path_join(dir, name+suff)
            try:
                fp = self.hooks.openfile(fullname, mode)
                return fp, fullname, info
            except self.hooks.openfile_error:
                pass
        return None 

def find_msvcrt():
        """Return the name of the VC runtime dll"""
        version = _get_build_version()
        if version is None:
            # better be safe than sorry
            return None
        if version <= 6:
            clibname = 'msvcrt'
        else:
            clibname = 'msvcr%d' % (version * 10)

        # If python was built with in debug mode
        import imp
        if imp.get_suffixes()[0][0] == '_d.pyd':
            clibname += 'd'
        return clibname+'.dll' 

def find_msvcrt():
        #************************************************************
        # FIXME: For GCC(mingw) runtime don't depend from compiler
        # version ;). We may use -D__MSVCRT_VERSION__ to detect which
        # verion is requested by user, but the name of the library
        # to be default.
        # As example WXP is with version 7.0 of msvcrt.dll.
        # Anyway since _get_build_version return 6 in most(standard)
        # cases this method will return msvcrt{d}. May be not so bad.
        #************************************************************
        """Return the name of the VC runtime dll"""
        version = _get_build_version()
        if version is None:
            # better be safe than sorry
            return None
        if version <= 6:
            clibname = 'msvcrt'
        else:
            clibname = 'msvcr%d' % (version * 10)

        # If python was built with in debug mode
        import imp
        if imp.get_suffixes()[0][0] == '_d.pyd':
            clibname += 'd'
        return clibname+'.dll' 

def _visit_pyfiles(list, dirname, names):
    """Helper for getFilesForName()."""
    # get extension for python source files
    if not globals().has_key('_py_ext'):
        global _py_ext
        _py_ext = [triple[0] for triple in imp.get_suffixes()
                   if triple[2] == imp.PY_SOURCE][0]

    # don't recurse into CVS directories
    if 'CVS' in names:
        names.remove('CVS')

    # add all *.py files to list
    list.extend(
        [os.path.join(dirname, file) for file in names
         if os.path.splitext(file)[1] == _py_ext]
        ) 

def find_msvcrt():
        """Return the name of the VC runtime dll"""
        version = _get_build_version()
        if version is None:
            # better be safe than sorry
            return None
        if version <= 6:
            clibname = 'msvcrt'
        else:
            clibname = 'msvcr%d' % (version * 10)

        # If python was built with in debug mode
        import imp
        if imp.get_suffixes()[0][0] == '_d.pyd':
            clibname += 'd'
        return clibname+'.dll' 

def find_module_in_dir(self, name, dir, allow_packages=1):
        if dir is None:
            return self.find_builtin_module(name)
        if allow_packages:
            fullname = self.hooks.path_join(dir, name)
            if self.hooks.path_isdir(fullname):
                stuff = self.find_module_in_dir("__init__", fullname, 0)
                if stuff:
                    file = stuff[0]
                    if file: file.close()
                    return None, fullname, ('', '', PKG_DIRECTORY)
        for info in self.hooks.get_suffixes():
            suff, mode, type = info
            fullname = self.hooks.path_join(dir, name+suff)
            try:
                fp = self.hooks.openfile(fullname, mode)
                return fp, fullname, info
            except self.hooks.openfile_error:
                pass
        return None 

def listmodules(self, allnames):
        modules = {}
        suffixes = imp.get_suffixes()
        sorted = []
        for suff, mode, flag in suffixes:
            i = -len(suff)
            for name in allnames[:]:
                normed_name = os.path.normcase(name)
                if normed_name[i:] == suff:
                    mod_name = name[:i]
                    if mod_name not in modules:
                        modules[mod_name] = None
                        sorted.append((normed_name, name))
                        allnames.remove(name)
        sorted.sort()
        return sorted 

def getmoduleinfo(path):
    """Get the module name, suffix, mode, and module type for a given file."""
    warnings.warn('inspect.getmoduleinfo() is deprecated', DeprecationWarning,
                  2)
    filename = os.path.basename(path)
    suffixes = [(-len(suffix), suffix, mode, mtype)
                    for suffix, mode, mtype in imp.get_suffixes()]
    suffixes.sort() # try longest suffixes first, in case they overlap
    for neglen, suffix, mode, mtype in suffixes:
        if filename[neglen:] == suffix:
            return ModuleInfo(filename[:neglen], suffix, mode, mtype) 

def get_abi3_suffix():
    """Return the file extension for an abi3-compliant Extension()"""
    for suffix, _, _ in (s for s in imp.get_suffixes() if s[2] == imp.C_EXTENSION):
        if '.abi3' in suffix:  # Unix
            return suffix
        elif suffix == '.pyd':  # Windows
            return suffix 

def _extension_suffixes():
        return [suffix for suffix, _, type in imp.get_suffixes()
                if type == imp.C_EXTENSION] 

def _extension_suffixes():
        return [suffix for suffix, _, type in imp.get_suffixes()
                if type == imp.C_EXTENSION] 

def _extension_suffixes():
        return [suffix for suffix, _, type in imp.get_suffixes()
                if type == imp.C_EXTENSION] 

def get_all_suffixes():
        return [suffix[0] for suffix in get_suffixes()] 

def extension_suffixes():
    # imp.get_suffixes()
    # 返回3元组列表(suffix, mode, type), 获得特殊模块的描述
    #   .suffix为文件后缀名;
    #   mode为打开文件模式;
    #   type为文件类型, 1代表PY_SOURCE, 2代表PY_COMPILED, 3代表C_EXTENSION

    EXTENSION_SUFFIXES = list()
    if env.is_py2:
        suf = imp.get_suffixes()
        for s in suf:
            if s[2] == 3:
                EXTENSION_SUFFIXES.append(s[0])
    else:
        EXTENSION_SUFFIXES = importlib.machinery.EXTENSION_SUFFIXES

    if env.is_win:
        if '.dll' not in EXTENSION_SUFFIXES:
            EXTENSION_SUFFIXES.append('.dll')

    elif env.is_linux:
        if '.so' not in EXTENSION_SUFFIXES:
            EXTENSION_SUFFIXES.append('.so')

    else:
        raise RuntimeError('not support this platform now.')

    return EXTENSION_SUFFIXES 

def getmoduleinfo(path):
    """Get the module name, suffix, mode, and module type for a given file."""
    filename = os.path.basename(path)
    suffixes = map(lambda (suffix, mode, mtype):
                   (-len(suffix), suffix, mode, mtype), imp.get_suffixes())
    suffixes.sort() # try longest suffixes first, in case they overlap
    for neglen, suffix, mode, mtype in suffixes:
        if filename[neglen:] == suffix:
            return filename[:neglen], suffix, mode, mtype 

def find_all_submodules(self, m):
        if not m.__path__:
            return
        modules = {}
        # 'suffixes' used to be a list hardcoded to [".py", ".pyc", ".pyo"].
        # But we must also collect Python extension modules - although
        # we cannot separate normal dlls from Python extensions.
        suffixes = []
        for triple in imp.get_suffixes():
            suffixes.append(triple[0])
        for dirname in m.__path__:
            try:
                names = os.listdir(dirname)
            except os.error:
                self.msg(2, "can't list directory", dirname)
                continue
            for name in names:
                mod = None
                for suff in suffixes:
                    n = len(suff)
                    if name[-n:] == suff:
                        mod = name[:-n]
                        break
                if mod and mod != "__init__":
                    modules[mod] = mod
        return list(modules.keys()) 

def get_suffixes(self): return imp.get_suffixes() 

def get_suffixes(self):
        return self.rexec.get_suffixes() 

def getmoduleinfo(path):
    """Get the module name, suffix, mode, and module type for a given file."""
    filename = os.path.basename(path)
    suffixes = map(lambda info:
                   (-len(info[0]), info[0], info[1], info[2]),
                    imp.get_suffixes())
    suffixes.sort() # try longest suffixes first, in case they overlap
    for neglen, suffix, mode, mtype in suffixes:
        if filename[neglen:] == suffix:
            return ModuleInfo(filename[:neglen], suffix, mode, mtype) 

def get_suffixes(self):
        return [item   # (suff, mode, type)
                for item in imp.get_suffixes()
                if item[2] in self.ok_file_types] 

def get_suffixes(self):
        return [item   # (suff, mode, type)
                for item in imp.get_suffixes()
                if item[2] in self.ok_file_types] 

def _extension_suffixes():
        return [suffix for suffix, _, type in imp.get_suffixes()
                if type == imp.C_EXTENSION] 

def getmoduleinfo(path):
    """Get the module name, suffix, mode, and module type for a given file."""
    filename = os.path.basename(path)
    suffixes = map(lambda info:
                   (-len(info[0]), info[0], info[1], info[2]),
                    imp.get_suffixes())
    suffixes.sort() # try longest suffixes first, in case they overlap
    for neglen, suffix, mode, mtype in suffixes:
        if filename[neglen:] == suffix:
            return ModuleInfo(filename[:neglen], suffix, mode, mtype) 

def find_all_submodules(self, m):
        if not m.__path__:
            return
        modules = {}
        # 'suffixes' used to be a list hardcoded to [".py", ".pyc", ".pyo"].
        # But we must also collect Python extension modules - although
        # we cannot separate normal dlls from Python extensions.
        suffixes = []
        for triple in imp.get_suffixes():
            suffixes.append(triple[0])
        for dir in m.__path__:
            try:
                names = os.listdir(dir)
            except os.error:
                self.msg(2, "can't list directory", dir)
                continue
            for name in names:
                mod = None
                for suff in suffixes:
                    n = len(suff)
                    if name[-n:] == suff:
                        mod = name[:-n]
                        break
                if mod and mod != "__init__":
                    modules[mod] = mod
        return modules.keys()