Python posixpath.split方法代码示例

# 需要导入模块: import posixpath [as 别名]
# 或者: from posixpath import split [as 别名]
def removedirs(name):
    """removedirs(path)

    Super-rmdir; remove a leaf directory and all empty intermediate
    ones.  Works like rmdir except that, if the leaf directory is
    successfully removed, directories corresponding to rightmost path
    segments will be pruned away until either the whole path is
    consumed or an error occurs.  Errors during this latter phase are
    ignored -- they generally mean that a directory was not empty.

    """
    rmdir(name)
    head, tail = path.split(name)
    if not tail:
        head, tail = path.split(head)
    while head and tail:
        try:
            rmdir(head)
        except error:
            break
        head, tail = path.split(head) 

# 需要导入模块: import posixpath [as 别名]
# 或者: from posixpath import split [as 别名]
def renames(old, new):
    """renames(old, new)

    Super-rename; create directories as necessary and delete any left
    empty.  Works like rename, except creation of any intermediate
    directories needed to make the new pathname good is attempted
    first.  After the rename, directories corresponding to rightmost
    path segments of the old name will be pruned way until either the
    whole path is consumed or a nonempty directory is found.

    Note: this function can fail with the new directory structure made
    if you lack permissions needed to unlink the leaf directory or
    file.

    """
    head, tail = path.split(new)
    if head and tail and not path.exists(head):
        makedirs(head)
    rename(old, new)
    head, tail = path.split(old)
    if head and tail:
        try:
            removedirs(head)
        except error:
            pass 

# 需要导入模块: import posixpath [as 别名]
# 或者: from posixpath import split [as 别名]
def makedirs(name, mode=0777):
    """makedirs(path [, mode=0777])

    Super-mkdir; create a leaf directory and all intermediate ones.
    Works like mkdir, except that any intermediate path segment (not
    just the rightmost) will be created if it does not exist.  This is
    recursive.

    """
    head, tail = path.split(name)
    if not tail:
        head, tail = path.split(head)
    if head and tail and not path.exists(head):
        try:
            makedirs(head, mode)
        except OSError, e:
            # be happy if someone already created the path
            if e.errno != errno.EEXIST:
                raise
        if tail == curdir:           # xxx/newdir/. exists if xxx/newdir exists
            return 

# 需要导入模块: import posixpath [as 别名]
# 或者: from posixpath import split [as 别名]
def renames(old, new):
    """renames(old, new)

    Super-rename; create directories as necessary and delete any left
    empty.  Works like rename, except creation of any intermediate
    directories needed to make the new pathname good is attempted
    first.  After the rename, directories corresponding to rightmost
    path segments of the old name will be pruned until either the
    whole path is consumed or a nonempty directory is found.

    Note: this function can fail with the new directory structure made
    if you lack permissions needed to unlink the leaf directory or
    file.

    """
    head, tail = path.split(new)
    if head and tail and not path.exists(head):
        makedirs(head)
    rename(old, new)
    head, tail = path.split(old)
    if head and tail:
        try:
            removedirs(head)
        except error:
            pass 

# 需要导入模块: import posixpath [as 别名]
# 或者: from posixpath import split [as 别名]
def _ancestry(path):
    """
    Given a path with elements separated by
    posixpath.sep, generate all elements of that path

    >>> list(_ancestry('b/d'))
    ['b/d', 'b']
    >>> list(_ancestry('/b/d/'))
    ['/b/d', '/b']
    >>> list(_ancestry('b/d/f/'))
    ['b/d/f', 'b/d', 'b']
    >>> list(_ancestry('b'))
    ['b']
    >>> list(_ancestry(''))
    []
    """
    path = path.rstrip(posixpath.sep)
    while path and path != posixpath.sep:
        yield path
        path, tail = posixpath.split(path) 

# 需要导入模块: import posixpath [as 别名]
# 或者: from posixpath import split [as 别名]
def removedirs(name):
    """removedirs(name)

    Super-rmdir; remove a leaf directory and all empty intermediate
    ones.  Works like rmdir except that, if the leaf directory is
    successfully removed, directories corresponding to rightmost path
    segments will be pruned away until either the whole path is
    consumed or an error occurs.  Errors during this latter phase are
    ignored -- they generally mean that a directory was not empty.

    """
    rmdir(name)
    head, tail = path.split(name)
    if not tail:
        head, tail = path.split(head)
    while head and tail:
        try:
            rmdir(head)
        except OSError:
            break
        head, tail = path.split(head) 

# 需要导入模块: import posixpath [as 别名]
# 或者: from posixpath import split [as 别名]
def renames(old, new):
    """renames(old, new)

    Super-rename; create directories as necessary and delete any left
    empty.  Works like rename, except creation of any intermediate
    directories needed to make the new pathname good is attempted
    first.  After the rename, directories corresponding to rightmost
    path segments of the old name will be pruned until either the
    whole path is consumed or a nonempty directory is found.

    Note: this function can fail with the new directory structure made
    if you lack permissions needed to unlink the leaf directory or
    file.

    """
    head, tail = path.split(new)
    if head and tail and not path.exists(head):
        makedirs(head)
    rename(old, new)
    head, tail = path.split(old)
    if head and tail:
        try:
            removedirs(head)
        except OSError:
            pass 

# 需要导入模块: import posixpath [as 别名]
# 或者: from posixpath import split [as 别名]
def get_dependents(archive, filename):
    """
    Normalise dependency file paths to absolute ones

    Relative paths are relative to parent object
    """
    src = archive.read(filename)
    node = fromstring(src)
    rels = RelationshipList.from_tree(node)
    folder = posixpath.dirname(filename)
    parent = posixpath.split(folder)[0]
    for r in rels.Relationship:
        if r.TargetMode == "External":
            continue
        elif r.target.startswith("/"):
            r.target = r.target[1:]
        else:
            pth = posixpath.join(parent, r.target)
            r.target = posixpath.normpath(pth)
    return rels 

# 需要导入模块: import posixpath [as 别名]
# 或者: from posixpath import split [as 别名]
def _find_any_file(self, hdfs_dir):
        contents = self.ls(hdfs_dir, status=True)

        def valid_filename(name):
            head, tail = posixpath.split(name)

            tail = tail.lower()
            return (
                not tail.endswith('.tmp')
                and not tail.endswith('.copying')
                and not tail.startswith('_')
                and not tail.startswith('.')
            )

        for filename, meta in contents:
            if meta['type'].lower() == 'file' and valid_filename(filename):
                return filename
        raise com.IbisError('No files found in the passed directory')