Python os.fspath() Examples

The following are code examples for showing how to use os.fspath(). They are extracted from open source Python projects. You can vote up the examples you like or vote down the ones you don't like. You can also save this page to your account.

Example 1
Project: python-   Author: secondtonone1   File: genericpath.py    (license) View Source Project 7 votes vote down vote up
def commonprefix(m):
    "Given a list of pathnames, returns the longest common leading component"
    if not m: return ''
    # Some people pass in a list of pathname parts to operate in an OS-agnostic
    # fashion; don't try to translate in that case as that's an abuse of the
    # API and they are already doing what they need to be OS-agnostic and so
    # they most likely won't be using an os.PathLike object in the sublists.
    if not isinstance(m[0], (list, tuple)):
        m = tuple(map(os.fspath, m))
    s1 = min(m)
    s2 = max(m)
    for i, c in enumerate(s1):
        if c != s2[i]:
            return s1[:i]
    return s1

# Are two stat buffers (obtained from stat, fstat or lstat)
# describing the same file? 
Example 2
Project: python-   Author: secondtonone1   File: ntpath.py    (license) View Source Project 6 votes vote down vote up
def normcase(s):
    """Normalize case of pathname.

    Makes all characters lowercase and all slashes into backslashes."""
    s = os.fspath(s)
    try:
        if isinstance(s, bytes):
            return s.replace(b'/', b'\\').lower()
        else:
            return s.replace('/', '\\').lower()
    except (TypeError, AttributeError):
        if not isinstance(s, (bytes, str)):
            raise TypeError("normcase() argument must be str or bytes, "
                            "not %r" % s.__class__.__name__) from None
        raise


# Return whether a path is absolute.
# Trivial in Posix, harder on Windows.
# For Windows it is absolute if it starts with a slash or backslash (current
# volume), or if a pathname after the volume-letter-and-colon or UNC-resource
# starts with a slash or backslash. 
Example 3
Project: python-   Author: secondtonone1   File: ntpath.py    (license) View Source Project 6 votes vote down vote up
def split(p):
    """Split a pathname.

    Return tuple (head, tail) where tail is everything after the final slash.
    Either part may be empty."""
    p = os.fspath(p)
    seps = _get_bothseps(p)
    d, p = splitdrive(p)
    # set i to index beyond p's last slash
    i = len(p)
    while i and p[i-1] not in seps:
        i -= 1
    head, tail = p[:i], p[i:]  # now tail has no slashes
    # remove trailing slashes from head, unless it's all slashes
    head = head.rstrip(seps) or head
    return d + head, tail


# Split a path in root and extension.
# The extension is everything starting at the last dot in the last
# pathname component; the root is everything before that.
# It is always true that root + ext == p. 
Example 4
Project: python-   Author: secondtonone1   File: ntpath.py    (license) View Source Project 6 votes vote down vote up
def abspath(path):
        """Return the absolute version of a path."""

        if path: # Empty path must return current working directory.
            path = os.fspath(path)
            try:
                path = _getfullpathname(path)
            except OSError:
                pass # Bad path - return unchanged.
        elif isinstance(path, bytes):
            path = os.getcwdb()
        else:
            path = os.getcwd()
        return normpath(path)

# realpath is a no-op on systems without islink support 
Example 5
Project: python-   Author: secondtonone1   File: posixpath.py    (license) View Source Project 6 votes vote down vote up
def split(p):
    """Split a pathname.  Returns tuple "(head, tail)" where "tail" is
    everything after the final slash.  Either part may be empty."""
    p = os.fspath(p)
    sep = _get_sep(p)
    i = p.rfind(sep) + 1
    head, tail = p[:i], p[i:]
    if head and head != sep*len(head):
        head = head.rstrip(sep)
    return head, tail


# Split a path in root and extension.
# The extension is everything starting at the last dot in the last
# pathname component; the root is everything before that.
# It is always true that root + ext == p. 
Example 6
Project: ivaochdoc   Author: ivaoch   File: ntpath.py    (license) View Source Project 6 votes vote down vote up
def normcase(s):
    """Normalize case of pathname.

    Makes all characters lowercase and all slashes into backslashes."""
    s = os.fspath(s)
    try:
        if isinstance(s, bytes):
            return s.replace(b'/', b'\\').lower()
        else:
            return s.replace('/', '\\').lower()
    except (TypeError, AttributeError):
        if not isinstance(s, (bytes, str)):
            raise TypeError("normcase() argument must be str or bytes, "
                            "not %r" % s.__class__.__name__) from None
        raise


# Return whether a path is absolute.
# Trivial in Posix, harder on Windows.
# For Windows it is absolute if it starts with a slash or backslash (current
# volume), or if a pathname after the volume-letter-and-colon or UNC-resource
# starts with a slash or backslash. 
Example 7
Project: ivaochdoc   Author: ivaoch   File: ntpath.py    (license) View Source Project 6 votes vote down vote up
def split(p):
    """Split a pathname.

    Return tuple (head, tail) where tail is everything after the final slash.
    Either part may be empty."""
    p = os.fspath(p)
    seps = _get_bothseps(p)
    d, p = splitdrive(p)
    # set i to index beyond p's last slash
    i = len(p)
    while i and p[i-1] not in seps:
        i -= 1
    head, tail = p[:i], p[i:]  # now tail has no slashes
    # remove trailing slashes from head, unless it's all slashes
    head = head.rstrip(seps) or head
    return d + head, tail


# Split a path in root and extension.
# The extension is everything starting at the last dot in the last
# pathname component; the root is everything before that.
# It is always true that root + ext == p. 
Example 8
Project: ivaochdoc   Author: ivaoch   File: ntpath.py    (license) View Source Project 6 votes vote down vote up
def abspath(path):
        """Return the absolute version of a path."""

        if path: # Empty path must return current working directory.
            path = os.fspath(path)
            try:
                path = _getfullpathname(path)
            except OSError:
                pass # Bad path - return unchanged.
        elif isinstance(path, bytes):
            path = os.getcwdb()
        else:
            path = os.getcwd()
        return normpath(path)

# realpath is a no-op on systems without islink support 
Example 9
Project: ivaochdoc   Author: ivaoch   File: posixpath.py    (license) View Source Project 6 votes vote down vote up
def split(p):
    """Split a pathname.  Returns tuple "(head, tail)" where "tail" is
    everything after the final slash.  Either part may be empty."""
    p = os.fspath(p)
    sep = _get_sep(p)
    i = p.rfind(sep) + 1
    head, tail = p[:i], p[i:]
    if head and head != sep*len(head):
        head = head.rstrip(sep)
    return head, tail


# Split a path in root and extension.
# The extension is everything starting at the last dot in the last
# pathname component; the root is everything before that.
# It is always true that root + ext == p. 
Example 10
Project: ivaochdoc   Author: ivaoch   File: genericpath.py    (license) View Source Project 6 votes vote down vote up
def commonprefix(m):
    "Given a list of pathnames, returns the longest common leading component"
    if not m: return ''
    # Some people pass in a list of pathname parts to operate in an OS-agnostic
    # fashion; don't try to translate in that case as that's an abuse of the
    # API and they are already doing what they need to be OS-agnostic and so
    # they most likely won't be using an os.PathLike object in the sublists.
    if not isinstance(m[0], (list, tuple)):
        m = tuple(map(os.fspath, m))
    s1 = min(m)
    s2 = max(m)
    for i, c in enumerate(s1):
        if c != s2[i]:
            return s1[:i]
    return s1

# Are two stat buffers (obtained from stat, fstat or lstat)
# describing the same file? 
Example 11
Project: news-for-good   Author: thecodinghub   File: ntpath.py    (license) View Source Project 6 votes vote down vote up
def normcase(s):
    """Normalize case of pathname.

    Makes all characters lowercase and all slashes into backslashes."""
    s = os.fspath(s)
    try:
        if isinstance(s, bytes):
            return s.replace(b'/', b'\\').lower()
        else:
            return s.replace('/', '\\').lower()
    except (TypeError, AttributeError):
        if not isinstance(s, (bytes, str)):
            raise TypeError("normcase() argument must be str or bytes, "
                            "not %r" % s.__class__.__name__) from None
        raise


# Return whether a path is absolute.
# Trivial in Posix, harder on Windows.
# For Windows it is absolute if it starts with a slash or backslash (current
# volume), or if a pathname after the volume-letter-and-colon or UNC-resource
# starts with a slash or backslash. 
Example 12
Project: news-for-good   Author: thecodinghub   File: ntpath.py    (license) View Source Project 6 votes vote down vote up
def split(p):
    """Split a pathname.

    Return tuple (head, tail) where tail is everything after the final slash.
    Either part may be empty."""
    p = os.fspath(p)
    seps = _get_bothseps(p)
    d, p = splitdrive(p)
    # set i to index beyond p's last slash
    i = len(p)
    while i and p[i-1] not in seps:
        i -= 1
    head, tail = p[:i], p[i:]  # now tail has no slashes
    # remove trailing slashes from head, unless it's all slashes
    head = head.rstrip(seps) or head
    return d + head, tail


# Split a path in root and extension.
# The extension is everything starting at the last dot in the last
# pathname component; the root is everything before that.
# It is always true that root + ext == p. 
Example 13
Project: news-for-good   Author: thecodinghub   File: ntpath.py    (license) View Source Project 6 votes vote down vote up
def abspath(path):
        """Return the absolute version of a path."""

        if path: # Empty path must return current working directory.
            path = os.fspath(path)
            try:
                path = _getfullpathname(path)
            except OSError:
                pass # Bad path - return unchanged.
        elif isinstance(path, bytes):
            path = os.getcwdb()
        else:
            path = os.getcwd()
        return normpath(path)

# realpath is a no-op on systems without islink support 
Example 14
Project: news-for-good   Author: thecodinghub   File: posixpath.py    (license) View Source Project 6 votes vote down vote up
def split(p):
    """Split a pathname.  Returns tuple "(head, tail)" where "tail" is
    everything after the final slash.  Either part may be empty."""
    p = os.fspath(p)
    sep = _get_sep(p)
    i = p.rfind(sep) + 1
    head, tail = p[:i], p[i:]
    if head and head != sep*len(head):
        head = head.rstrip(sep)
    return head, tail


# Split a path in root and extension.
# The extension is everything starting at the last dot in the last
# pathname component; the root is everything before that.
# It is always true that root + ext == p. 
Example 15
Project: news-for-good   Author: thecodinghub   File: genericpath.py    (license) View Source Project 6 votes vote down vote up
def commonprefix(m):
    "Given a list of pathnames, returns the longest common leading component"
    if not m: return ''
    # Some people pass in a list of pathname parts to operate in an OS-agnostic
    # fashion; don't try to translate in that case as that's an abuse of the
    # API and they are already doing what they need to be OS-agnostic and so
    # they most likely won't be using an os.PathLike object in the sublists.
    if not isinstance(m[0], (list, tuple)):
        m = tuple(map(os.fspath, m))
    s1 = min(m)
    s2 = max(m)
    for i, c in enumerate(s1):
        if c != s2[i]:
            return s1[:i]
    return s1

# Are two stat buffers (obtained from stat, fstat or lstat)
# describing the same file? 
Example 16
Project: asyncpg   Author: MagicStack   File: compat.py    (license) View Source Project 6 votes vote down vote up
def fspath(path):
        fsp = getattr(path, '__fspath__', None)
        if fsp is not None and callable(fsp):
            path = fsp()
            if not isinstance(path, (str, bytes)):
                raise TypeError(
                    'expected {}() to return str or bytes, not {}'.format(
                        fsp.__qualname__, type(path).__name__
                    ))
            return path
        elif isinstance(path, (str, bytes)):
            return path
        else:
            raise TypeError(
                'expected str, bytes or path-like object, not {}'.format(
                    type(path).__name__
                )
            ) 
Example 17
Project: python-   Author: secondtonone1   File: ntpath.py    (license) View Source Project 5 votes vote down vote up
def isabs(s):
    """Test whether a path is absolute"""
    s = os.fspath(s)
    s = splitdrive(s)[1]
    return len(s) > 0 and s[0] in _get_bothseps(s)


# Join two (or more) paths. 
Example 18
Project: python-   Author: secondtonone1   File: ntpath.py    (license) View Source Project 5 votes vote down vote up
def ismount(path):
    """Test whether a path is a mount point (a drive root, the root of a
    share, or a mounted volume)"""
    path = os.fspath(path)
    seps = _get_bothseps(path)
    path = abspath(path)
    root, rest = splitdrive(path)
    if root and root[0] in seps:
        return (not rest) or (rest in seps)
    if rest in seps:
        return True

    if _getvolumepathname:
        return path.rstrip(seps) == _getvolumepathname(path).rstrip(seps)
    else:
        return False


# Expand paths beginning with '~' or '~user'.
# '~' means $HOME; '~user' means that user's home directory.
# If the path doesn't begin with '~', or if the user or $HOME is unknown,
# the path is returned unchanged (leaving error reporting to whatever
# function is called with the expanded path as argument).
# See also module 'glob' for expansion of *, ? and [...] in pathnames.
# (A function should also be defined to do full *sh-style environment
# variable expansion.) 
Example 19
Project: python-   Author: secondtonone1   File: ntpath.py    (license) View Source Project 5 votes vote down vote up
def abspath(path):
        """Return the absolute version of a path."""
        path = os.fspath(path)
        if not isabs(path):
            if isinstance(path, bytes):
                cwd = os.getcwdb()
            else:
                cwd = os.getcwd()
            path = join(cwd, path)
        return normpath(path) 
Example 20
Project: python-   Author: secondtonone1   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def normcase(s):
    """Normalize case of pathname.  Has no effect under Posix"""
    s = os.fspath(s)
    if not isinstance(s, (bytes, str)):
        raise TypeError("normcase() argument must be str or bytes, "
                        "not '{}'".format(s.__class__.__name__))
    return s


# Return whether a path is absolute.
# Trivial in Posix, harder on the Mac or MS-DOS. 
Example 21
Project: python-   Author: secondtonone1   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def isabs(s):
    """Test whether a path is absolute"""
    s = os.fspath(s)
    sep = _get_sep(s)
    return s.startswith(sep)


# Join pathnames.
# Ignore the previous parts if a part is absolute.
# Insert a '/' unless the first part is empty or already ends in '/'. 
Example 22
Project: python-   Author: secondtonone1   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def join(a, *p):
    """Join two or more pathname components, inserting '/' as needed.
    If any component is an absolute path, all previous path components
    will be discarded.  An empty last part will result in a path that
    ends with a separator."""
    a = os.fspath(a)
    sep = _get_sep(a)
    path = a
    try:
        if not p:
            path[:0] + sep  #23780: Ensure compatible data type even if p is null.
        for b in map(os.fspath, p):
            if b.startswith(sep):
                path = b
            elif not path or path.endswith(sep):
                path += b
            else:
                path += sep + b
    except (TypeError, AttributeError, BytesWarning):
        genericpath._check_arg_types('join', a, *p)
        raise
    return path


# Split a path in head (everything up to the last '/') and tail (the
# rest).  If the path ends in '/', tail will be empty.  If there is no
# '/' in the path, head  will be empty.
# Trailing '/'es are stripped from head unless it is the root. 
Example 23
Project: python-   Author: secondtonone1   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def splitdrive(p):
    """Split a pathname into drive and path. On Posix, drive is always
    empty."""
    p = os.fspath(p)
    return p[:0], p


# Return the tail (basename) part of a path, same as split(path)[1]. 
Example 24
Project: python-   Author: secondtonone1   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def basename(p):
    """Returns the final component of a pathname"""
    p = os.fspath(p)
    sep = _get_sep(p)
    i = p.rfind(sep) + 1
    return p[i:]


# Return the head (dirname) part of a path, same as split(path)[0]. 
Example 25
Project: python-   Author: secondtonone1   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def dirname(p):
    """Returns the directory component of a pathname"""
    p = os.fspath(p)
    sep = _get_sep(p)
    i = p.rfind(sep) + 1
    head = p[:i]
    if head and head != sep*len(head):
        head = head.rstrip(sep)
    return head


# Is a path a symbolic link?
# This will always return false on systems where os.lstat doesn't exist. 
Example 26
Project: python-   Author: secondtonone1   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def abspath(path):
    """Return an absolute path."""
    path = os.fspath(path)
    if not isabs(path):
        if isinstance(path, bytes):
            cwd = os.getcwdb()
        else:
            cwd = os.getcwd()
        path = join(cwd, path)
    return normpath(path)


# Return a canonical path (i.e. the absolute location of a file on the
# filesystem). 
Example 27
Project: python-   Author: secondtonone1   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def realpath(filename):
    """Return the canonical path of the specified filename, eliminating any
symbolic links encountered in the path."""
    filename = os.fspath(filename)
    path, ok = _joinrealpath(filename[:0], filename, {})
    return abspath(path)

# Join two paths, normalizing and eliminating any symbolic links
# encountered in the second path. 
Example 28
Project: python-   Author: secondtonone1   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def relpath(path, start=None):
    """Return a relative version of a path"""

    if not path:
        raise ValueError("no path specified")

    path = os.fspath(path)
    if isinstance(path, bytes):
        curdir = b'.'
        sep = b'/'
        pardir = b'..'
    else:
        curdir = '.'
        sep = '/'
        pardir = '..'

    if start is None:
        start = curdir
    else:
        start = os.fspath(start)

    try:
        start_list = [x for x in abspath(start).split(sep) if x]
        path_list = [x for x in abspath(path).split(sep) if x]
        # Work out how much of the filepath is shared by start and path.
        i = len(commonprefix([start_list, path_list]))

        rel_list = [pardir] * (len(start_list)-i) + path_list[i:]
        if not rel_list:
            return curdir
        return join(*rel_list)
    except (TypeError, AttributeError, BytesWarning, DeprecationWarning):
        genericpath._check_arg_types('relpath', path, start)
        raise


# Return the longest common sub-path of the sequence of paths given as input.
# The paths are not normalized before comparing them (this is the
# responsibility of the caller). Any trailing separator is stripped from the
# returned path. 
Example 29
Project: python-   Author: secondtonone1   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def commonpath(paths):
    """Given a sequence of path names, returns the longest common sub-path."""

    if not paths:
        raise ValueError('commonpath() arg is an empty sequence')

    paths = tuple(map(os.fspath, paths))
    if isinstance(paths[0], bytes):
        sep = b'/'
        curdir = b'.'
    else:
        sep = '/'
        curdir = '.'

    try:
        split_paths = [path.split(sep) for path in paths]

        try:
            isabs, = set(p[:1] == sep for p in paths)
        except ValueError:
            raise ValueError("Can't mix absolute and relative paths") from None

        split_paths = [[c for c in s if c and c != curdir] for s in split_paths]
        s1 = min(split_paths)
        s2 = max(split_paths)
        common = s1
        for i, c in enumerate(s1):
            if c != s2[i]:
                common = s1[:i]
                break

        prefix = sep if isabs else sep[:0]
        return prefix + sep.join(common)
    except (TypeError, AttributeError):
        genericpath._check_arg_types('commonpath', *paths)
        raise 
Example 30
Project: senf   Author: quodlibet   File: test_api.py    (MIT License) View Source Project 5 votes vote down vote up
def test_path2fsn_pathlike():
    # basic tests for os.fspath
    with pytest.raises(TypeError):
        os.fspath(PathLike(None))
    assert os.fspath(PathLike(fsnative(u"foo"))) == fsnative(u"foo")
    assert os.fspath(PathLike(u"\u1234")) == u"\u1234"

    # now support in path2fsn
    pathlike = PathLike(fsnative(u"foo"))
    assert path2fsn(pathlike) == fsnative(u"foo")

    # pathlib should also work..
    from pathlib import Path
    assert path2fsn(Path(".")) == fsnative(u".") 
Example 31
Project: ivaochdoc   Author: ivaoch   File: ntpath.py    (license) View Source Project 5 votes vote down vote up
def isabs(s):
    """Test whether a path is absolute"""
    s = os.fspath(s)
    s = splitdrive(s)[1]
    return len(s) > 0 and s[0] in _get_bothseps(s)


# Join two (or more) paths. 
Example 32
Project: ivaochdoc   Author: ivaoch   File: ntpath.py    (license) View Source Project 5 votes vote down vote up
def ismount(path):
    """Test whether a path is a mount point (a drive root, the root of a
    share, or a mounted volume)"""
    path = os.fspath(path)
    seps = _get_bothseps(path)
    path = abspath(path)
    root, rest = splitdrive(path)
    if root and root[0] in seps:
        return (not rest) or (rest in seps)
    if rest in seps:
        return True

    if _getvolumepathname:
        return path.rstrip(seps) == _getvolumepathname(path).rstrip(seps)
    else:
        return False


# Expand paths beginning with '~' or '~user'.
# '~' means $HOME; '~user' means that user's home directory.
# If the path doesn't begin with '~', or if the user or $HOME is unknown,
# the path is returned unchanged (leaving error reporting to whatever
# function is called with the expanded path as argument).
# See also module 'glob' for expansion of *, ? and [...] in pathnames.
# (A function should also be defined to do full *sh-style environment
# variable expansion.) 
Example 33
Project: ivaochdoc   Author: ivaoch   File: ntpath.py    (license) View Source Project 5 votes vote down vote up
def abspath(path):
        """Return the absolute version of a path."""
        path = os.fspath(path)
        if not isabs(path):
            if isinstance(path, bytes):
                cwd = os.getcwdb()
            else:
                cwd = os.getcwd()
            path = join(cwd, path)
        return normpath(path) 
Example 34
Project: ivaochdoc   Author: ivaoch   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def normcase(s):
    """Normalize case of pathname.  Has no effect under Posix"""
    s = os.fspath(s)
    if not isinstance(s, (bytes, str)):
        raise TypeError("normcase() argument must be str or bytes, "
                        "not '{}'".format(s.__class__.__name__))
    return s


# Return whether a path is absolute.
# Trivial in Posix, harder on the Mac or MS-DOS. 
Example 35
Project: ivaochdoc   Author: ivaoch   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def isabs(s):
    """Test whether a path is absolute"""
    s = os.fspath(s)
    sep = _get_sep(s)
    return s.startswith(sep)


# Join pathnames.
# Ignore the previous parts if a part is absolute.
# Insert a '/' unless the first part is empty or already ends in '/'. 
Example 36
Project: ivaochdoc   Author: ivaoch   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def join(a, *p):
    """Join two or more pathname components, inserting '/' as needed.
    If any component is an absolute path, all previous path components
    will be discarded.  An empty last part will result in a path that
    ends with a separator."""
    a = os.fspath(a)
    sep = _get_sep(a)
    path = a
    try:
        if not p:
            path[:0] + sep  #23780: Ensure compatible data type even if p is null.
        for b in map(os.fspath, p):
            if b.startswith(sep):
                path = b
            elif not path or path.endswith(sep):
                path += b
            else:
                path += sep + b
    except (TypeError, AttributeError, BytesWarning):
        genericpath._check_arg_types('join', a, *p)
        raise
    return path


# Split a path in head (everything up to the last '/') and tail (the
# rest).  If the path ends in '/', tail will be empty.  If there is no
# '/' in the path, head  will be empty.
# Trailing '/'es are stripped from head unless it is the root. 
Example 37
Project: ivaochdoc   Author: ivaoch   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def splitdrive(p):
    """Split a pathname into drive and path. On Posix, drive is always
    empty."""
    p = os.fspath(p)
    return p[:0], p


# Return the tail (basename) part of a path, same as split(path)[1]. 
Example 38
Project: ivaochdoc   Author: ivaoch   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def basename(p):
    """Returns the final component of a pathname"""
    p = os.fspath(p)
    sep = _get_sep(p)
    i = p.rfind(sep) + 1
    return p[i:]


# Return the head (dirname) part of a path, same as split(path)[0]. 
Example 39
Project: ivaochdoc   Author: ivaoch   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def dirname(p):
    """Returns the directory component of a pathname"""
    p = os.fspath(p)
    sep = _get_sep(p)
    i = p.rfind(sep) + 1
    head = p[:i]
    if head and head != sep*len(head):
        head = head.rstrip(sep)
    return head


# Is a path a symbolic link?
# This will always return false on systems where os.lstat doesn't exist. 
Example 40
Project: ivaochdoc   Author: ivaoch   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def abspath(path):
    """Return an absolute path."""
    path = os.fspath(path)
    if not isabs(path):
        if isinstance(path, bytes):
            cwd = os.getcwdb()
        else:
            cwd = os.getcwd()
        path = join(cwd, path)
    return normpath(path)


# Return a canonical path (i.e. the absolute location of a file on the
# filesystem). 
Example 41
Project: ivaochdoc   Author: ivaoch   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def realpath(filename):
    """Return the canonical path of the specified filename, eliminating any
symbolic links encountered in the path."""
    filename = os.fspath(filename)
    path, ok = _joinrealpath(filename[:0], filename, {})
    return abspath(path)

# Join two paths, normalizing and eliminating any symbolic links
# encountered in the second path. 
Example 42
Project: ivaochdoc   Author: ivaoch   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def relpath(path, start=None):
    """Return a relative version of a path"""

    if not path:
        raise ValueError("no path specified")

    path = os.fspath(path)
    if isinstance(path, bytes):
        curdir = b'.'
        sep = b'/'
        pardir = b'..'
    else:
        curdir = '.'
        sep = '/'
        pardir = '..'

    if start is None:
        start = curdir
    else:
        start = os.fspath(start)

    try:
        start_list = [x for x in abspath(start).split(sep) if x]
        path_list = [x for x in abspath(path).split(sep) if x]
        # Work out how much of the filepath is shared by start and path.
        i = len(commonprefix([start_list, path_list]))

        rel_list = [pardir] * (len(start_list)-i) + path_list[i:]
        if not rel_list:
            return curdir
        return join(*rel_list)
    except (TypeError, AttributeError, BytesWarning, DeprecationWarning):
        genericpath._check_arg_types('relpath', path, start)
        raise


# Return the longest common sub-path of the sequence of paths given as input.
# The paths are not normalized before comparing them (this is the
# responsibility of the caller). Any trailing separator is stripped from the
# returned path. 
Example 43
Project: ivaochdoc   Author: ivaoch   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def commonpath(paths):
    """Given a sequence of path names, returns the longest common sub-path."""

    if not paths:
        raise ValueError('commonpath() arg is an empty sequence')

    paths = tuple(map(os.fspath, paths))
    if isinstance(paths[0], bytes):
        sep = b'/'
        curdir = b'.'
    else:
        sep = '/'
        curdir = '.'

    try:
        split_paths = [path.split(sep) for path in paths]

        try:
            isabs, = set(p[:1] == sep for p in paths)
        except ValueError:
            raise ValueError("Can't mix absolute and relative paths") from None

        split_paths = [[c for c in s if c and c != curdir] for s in split_paths]
        s1 = min(split_paths)
        s2 = max(split_paths)
        common = s1
        for i, c in enumerate(s1):
            if c != s2[i]:
                common = s1[:i]
                break

        prefix = sep if isabs else sep[:0]
        return prefix + sep.join(common)
    except (TypeError, AttributeError):
        genericpath._check_arg_types('commonpath', *paths)
        raise 
Example 44
Project: CrowdAnki   Author: Stvad   File: pathlib2.py    (license) View Source Project 5 votes vote down vote up
def _parse_args(cls, args):
        # This is useful when you don't want to create an instance, just
        # canonicalize some constructor arguments.
        parts = []
        for a in args:
            if isinstance(a, PurePath):
                parts += a._parts
            else:
                if sys.version_info >= (3, 6):
                    a = os.fspath(a)
                else:
                    # duck typing for older Python versions
                    if hasattr(a, "__fspath__"):
                        a = a.__fspath__()
                if isinstance(a, str):
                    # Force-cast str subclasses to str (issue #21127)
                    parts.append(str(a))
                # also handle unicode for PY2 (six.text_type = unicode)
                elif six.PY2 and isinstance(a, six.text_type):
                    # cast to str using filesystem encoding
                    parts.append(a.encode(sys.getfilesystemencoding()))
                else:
                    raise TypeError(
                        "argument should be a str object or an os.PathLike "
                        "object returning str, not %r"
                        % type(a))
        return cls._flavour.parse_parts(parts) 
Example 45
Project: news-for-good   Author: thecodinghub   File: ntpath.py    (license) View Source Project 5 votes vote down vote up
def isabs(s):
    """Test whether a path is absolute"""
    s = os.fspath(s)
    s = splitdrive(s)[1]
    return len(s) > 0 and s[0] in _get_bothseps(s)


# Join two (or more) paths. 
Example 46
Project: news-for-good   Author: thecodinghub   File: ntpath.py    (license) View Source Project 5 votes vote down vote up
def ismount(path):
    """Test whether a path is a mount point (a drive root, the root of a
    share, or a mounted volume)"""
    path = os.fspath(path)
    seps = _get_bothseps(path)
    path = abspath(path)
    root, rest = splitdrive(path)
    if root and root[0] in seps:
        return (not rest) or (rest in seps)
    if rest in seps:
        return True

    if _getvolumepathname:
        return path.rstrip(seps) == _getvolumepathname(path).rstrip(seps)
    else:
        return False


# Expand paths beginning with '~' or '~user'.
# '~' means $HOME; '~user' means that user's home directory.
# If the path doesn't begin with '~', or if the user or $HOME is unknown,
# the path is returned unchanged (leaving error reporting to whatever
# function is called with the expanded path as argument).
# See also module 'glob' for expansion of *, ? and [...] in pathnames.
# (A function should also be defined to do full *sh-style environment
# variable expansion.) 
Example 47
Project: news-for-good   Author: thecodinghub   File: ntpath.py    (license) View Source Project 5 votes vote down vote up
def abspath(path):
        """Return the absolute version of a path."""
        path = os.fspath(path)
        if not isabs(path):
            if isinstance(path, bytes):
                cwd = os.getcwdb()
            else:
                cwd = os.getcwd()
            path = join(cwd, path)
        return normpath(path) 
Example 48
Project: news-for-good   Author: thecodinghub   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def normcase(s):
    """Normalize case of pathname.  Has no effect under Posix"""
    s = os.fspath(s)
    if not isinstance(s, (bytes, str)):
        raise TypeError("normcase() argument must be str or bytes, "
                        "not '{}'".format(s.__class__.__name__))
    return s


# Return whether a path is absolute.
# Trivial in Posix, harder on the Mac or MS-DOS. 
Example 49
Project: news-for-good   Author: thecodinghub   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def isabs(s):
    """Test whether a path is absolute"""
    s = os.fspath(s)
    sep = _get_sep(s)
    return s.startswith(sep)


# Join pathnames.
# Ignore the previous parts if a part is absolute.
# Insert a '/' unless the first part is empty or already ends in '/'. 
Example 50
Project: news-for-good   Author: thecodinghub   File: posixpath.py    (license) View Source Project 5 votes vote down vote up
def join(a, *p):
    """Join two or more pathname components, inserting '/' as needed.
    If any component is an absolute path, all previous path components
    will be discarded.  An empty last part will result in a path that
    ends with a separator."""
    a = os.fspath(a)
    sep = _get_sep(a)
    path = a
    try:
        if not p:
            path[:0] + sep  #23780: Ensure compatible data type even if p is null.
        for b in map(os.fspath, p):
            if b.startswith(sep):
                path = b
            elif not path or path.endswith(sep):
                path += b
            else:
                path += sep + b
    except (TypeError, AttributeError, BytesWarning):
        genericpath._check_arg_types('join', a, *p)
        raise
    return path


# Split a path in head (everything up to the last '/') and tail (the
# rest).  If the path ends in '/', tail will be empty.  If there is no
# '/' in the path, head  will be empty.
# Trailing '/'es are stripped from head unless it is the root.