misc.py 文件源码

def _iglob(pathname):
        """Return an iterator which yields the paths matching a pathname pattern.

        The pattern may contain simple shell-style wildcards a la
        fnmatch. However, unlike fnmatch, filenames starting with a
        dot are special cases that are not matched by '*' and '?'
        patterns.

        If recursive is true, the pattern '**' will match any files and
        zero or more directories and subdirectories.

        Note: The recursive glob was introduced in Python 3.5. This is more
        or less a straight back-port in order to support older versions.
        """
        dirname, basename = os.path.split(pathname)
        if not _glob.has_magic(pathname):
            if basename:
                if os.path.lexists(pathname):
                    yield pathname
                else:
                    raise FileNotFoundError
            else:
                if os.path.isdir(dirname):
                    yield pathname
                else:
                    raise NotADirectoryError
            return
        if not dirname:
            if basename == '**':
                for name in _glob2(dirname, basename):
                    yield name
            else:
                for name in _glob.glob1(dirname, basename):
                    yield name
            return
        if dirname != pathname and _glob.has_magic(dirname):
            dirs = _iglob(dirname)
        else:
            dirs = [dirname]
        if _glob.has_magic(basename):
            if basename == '**':
                glob_in_dir = _glob2
            else:
                glob_in_dir = _glob.glob1
        else:
            glob_in_dir = _glob.glob0(dirname, basename)
        for dirname in dirs:
            for name in glob_in_dir(dirname, basename):
                yield os.path.join(dirname, name)