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/opt/imh-python/lib/python3.9/site-packages/IPython/utils/

/opt/imh-python/lib/python3.9/site-packages/IPython/utils

Name	Size	Mode	Actions
tests/	-	0755	rm
__pycache__/	-	0755	rm
capture.py	5161	0644	edit dl rm
colorable.py	786	0644	edit dl rm
coloransi.py	6972	0644	edit dl rm
contexts.py	1619	0644	edit dl rm
daemonize.py	200	0644	edit dl rm
data.py	1015	0644	edit dl rm
decorators.py	2680	0644	edit dl rm
dir2.py	2232	0644	edit dl rm
docs.py	86	0644	edit dl rm
encoding.py	2843	0644	edit dl rm
eventful.py	138	0644	edit dl rm
frame.py	3048	0644	edit dl rm
generics.py	706	0644	edit dl rm
importstring.py	1050	0644	edit dl rm
io.py	4631	0644	edit dl rm
ipstruct.py	11856	0644	edit dl rm
jsonutil.py	148	0644	edit dl rm
localinterfaces.py	169	0644	edit dl rm
log.py	123	0644	edit dl rm
module_paths.py	2327	0644	edit dl rm
openpy.py	3417	0644	edit dl rm
path.py	11937	0644	edit dl rm
process.py	1878	0644	edit dl rm
py3compat.py	1602	0644	edit dl rm
PyColorize.py	10875	0644	edit dl rm
sentinel.py	421	0644	edit dl rm
shimmodule.py	2669	0644	edit dl rm
signatures.py	474	0644	edit dl rm
strdispatch.py	1838	0644	edit dl rm
sysinfo.py	4365	0644	edit dl rm
syspathcontext.py	1952	0644	edit dl rm
tempdir.py	1867	0644	edit dl rm
terminal.py	3206	0644	edit dl rm
text.py	24428	0644	edit dl rm
timing.py	4275	0644	edit dl rm
tokenutil.py	5083	0644	edit dl rm
traitlets.py	143	0644	edit dl rm
tz.py	1380	0644	edit dl rm
ulinecache.py	684	0644	edit dl rm
version.py	1223	0644	edit dl rm
wildcard.py	4612	0644	edit dl rm
_process_cli.py	2020	0644	edit dl rm
_process_common.py	7003	0644	edit dl rm
_process_posix.py	8666	0644	edit dl rm
_process_win32.py	6132	0644	edit dl rm
_process_win32_controller.py	21329	0644	edit dl rm
_sysinfo.py	45	0644	edit dl rm
__init__.py	0	0644	edit dl rm

Edit: /opt/imh-python/lib/python3.9/site-packages/IPython/utils/path.py (11937B)

# encoding: utf-8
"""
Utilities for path handling.
"""

# Copyright (c) IPython Development Team.
# Distributed under the terms of the Modified BSD License.

import os
import sys
import errno
import shutil
import random
import glob

from IPython.utils.process import system

#-----------------------------------------------------------------------------
# Code
#-----------------------------------------------------------------------------
fs_encoding = sys.getfilesystemencoding()

def _writable_dir(path):
    """Whether `path` is a directory, to which the user has write access."""
    return os.path.isdir(path) and os.access(path, os.W_OK)

if sys.platform == 'win32':
    def _get_long_path_name(path):
        """Get a long path name (expand ~) on Windows using ctypes.

Examples
        --------

>>> get_long_path_name('c:\\\\docume~1')
        'c:\\\\Documents and Settings'

"""
        try:
            import ctypes
        except ImportError as e: 
            raise ImportError('you need to have ctypes installed for this to work') from e
        _GetLongPathName = ctypes.windll.kernel32.GetLongPathNameW
        _GetLongPathName.argtypes = [ctypes.c_wchar_p, ctypes.c_wchar_p,
            ctypes.c_uint ]

buf = ctypes.create_unicode_buffer(260)
        rv = _GetLongPathName(path, buf, 260)
        if rv == 0 or rv > 260:
            return path
        else:
            return buf.value
else:
    def _get_long_path_name(path):
        """Dummy no-op."""
        return path

def get_long_path_name(path):
    """Expand a path into its long form.

On Windows this expands any ~ in the paths. On other platforms, it is
    a null operation.
    """
    return _get_long_path_name(path)

def compress_user(path):
    """Reverse of :func:`os.path.expanduser`
    """
    home = os.path.expanduser('~')
    if path.startswith(home):
        path =  "~" + path[len(home):]
    return path

def get_py_filename(name):
    """Return a valid python filename in the current directory.

If the given name is not a file, it adds '.py' and searches again.
    Raises IOError with an informative message if the file isn't found.
    """

name = os.path.expanduser(name)
    if os.path.isfile(name):
        return name
    if not name.endswith(".py"):
        py_name = name + ".py"
        if os.path.isfile(py_name):
            return py_name
    raise IOError("File `%r` not found." % name)

def filefind(filename: str, path_dirs=None) -> str:
    """Find a file by looking through a sequence of paths.

This iterates through a sequence of paths looking for a file and returns
    the full, absolute path of the first occurrence of the file.  If no set of
    path dirs is given, the filename is tested as is, after running through
    :func:`expandvars` and :func:`expanduser`.  Thus a simple call::

filefind('myfile.txt')

will find the file in the current working dir, but::

filefind('~/myfile.txt')

Will find the file in the users home directory.  This function does not
    automatically try any paths, such as the cwd or the user's home directory.

Parameters
    ----------
    filename : str
        The filename to look for.
    path_dirs : str, None or sequence of str
        The sequence of paths to look for the file in.  If None, the filename
        need to be absolute or be in the cwd.  If a string, the string is
        put into a sequence and the searched.  If a sequence, walk through
        each element and join with ``filename``, calling :func:`expandvars`
        and :func:`expanduser` before testing for existence.

Returns
    -------
    path : str
        returns absolute path to file.

Raises
    ------
    IOError
    """

# If paths are quoted, abspath gets confused, strip them...
    filename = filename.strip('"').strip("'")
    # If the input is an absolute path, just check it exists
    if os.path.isabs(filename) and os.path.isfile(filename):
        return filename

if path_dirs is None:
        path_dirs = ("",)
    elif isinstance(path_dirs, str):
        path_dirs = (path_dirs,)

for path in path_dirs:
        if path == '.': path = os.getcwd()
        testname = expand_path(os.path.join(path, filename))
        if os.path.isfile(testname):
            return os.path.abspath(testname)

raise IOError("File %r does not exist in any of the search paths: %r" %
                  (filename, path_dirs) )

class HomeDirError(Exception):
    pass

def get_home_dir(require_writable=False) -> str:
    """Return the 'home' directory, as a unicode string.

Uses os.path.expanduser('~'), and checks for writability.

See stdlib docs for how this is determined.
    For Python <3.8, $HOME is first priority on *ALL* platforms.
    For Python >=3.8 on Windows, %HOME% is no longer considered.

Parameters
    ----------
    require_writable : bool [default: False]
        if True:
            guarantees the return value is a writable directory, otherwise
            raises HomeDirError
        if False:
            The path is resolved, but it is not guaranteed to exist or be writable.
    """

homedir = os.path.expanduser('~')
    # Next line will make things work even when /home/ is a symlink to
    # /usr/home as it is on FreeBSD, for example
    homedir = os.path.realpath(homedir)

if not _writable_dir(homedir) and os.name == 'nt':
        # expanduser failed, use the registry to get the 'My Documents' folder.
        try:
            import winreg as wreg
            with wreg.OpenKey(
                wreg.HKEY_CURRENT_USER,
                r"Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders"
            ) as key:
                homedir = wreg.QueryValueEx(key,'Personal')[0]
        except:
            pass

if (not require_writable) or _writable_dir(homedir):
        assert isinstance(homedir, str), "Homedir should be unicode not bytes"
        return homedir
    else:
        raise HomeDirError('%s is not a writable dir, '
                'set $HOME environment variable to override' % homedir)

def get_xdg_dir():
    """Return the XDG_CONFIG_HOME, if it is defined and exists, else None.

This is only for non-OS X posix (Linux,Unix,etc.) systems.
    """

env = os.environ

if os.name == "posix":
        # Linux, Unix, AIX, etc.
        # use ~/.config if empty OR not set
        xdg = env.get("XDG_CONFIG_HOME", None) or os.path.join(get_home_dir(), '.config')
        if xdg and _writable_dir(xdg):
            assert isinstance(xdg, str)
            return xdg

return None

def get_xdg_cache_dir():
    """Return the XDG_CACHE_HOME, if it is defined and exists, else None.

This is only for non-OS X posix (Linux,Unix,etc.) systems.
    """

env = os.environ

if os.name == "posix":
        # Linux, Unix, AIX, etc.
        # use ~/.cache if empty OR not set
        xdg = env.get("XDG_CACHE_HOME", None) or os.path.join(get_home_dir(), '.cache')
        if xdg and _writable_dir(xdg):
            assert isinstance(xdg, str)
            return xdg

return None

def expand_path(s):
    """Expand $VARS and ~names in a string, like a shell

:Examples:

In [2]: os.environ['FOO']='test'

In [3]: expand_path('variable FOO is $FOO')
       Out[3]: 'variable FOO is test'
    """
    # This is a pretty subtle hack. When expand user is given a UNC path
    # on Windows (\\server\share$\%username%), os.path.expandvars, removes
    # the $ to get (\\server\share\%username%). I think it considered $
    # alone an empty var. But, we need the $ to remains there (it indicates
    # a hidden share).
    if os.name=='nt':
        s = s.replace('$\\', 'IPYTHON_TEMP')
    s = os.path.expandvars(os.path.expanduser(s))
    if os.name=='nt':
        s = s.replace('IPYTHON_TEMP', '$\\')
    return s

def unescape_glob(string):
    """Unescape glob pattern in `string`."""
    def unescape(s):
        for pattern in '*[]!?':
            s = s.replace(r'\{0}'.format(pattern), pattern)
        return s
    return '\\'.join(map(unescape, string.split('\\\\')))

def shellglob(args):
    """
    Do glob expansion for each element in `args` and return a flattened list.

Unmatched glob pattern will remain as-is in the returned list.

"""
    expanded = []
    # Do not unescape backslash in Windows as it is interpreted as
    # path separator:
    unescape = unescape_glob if sys.platform != 'win32' else lambda x: x
    for a in args:
        expanded.extend(glob.glob(a) or [unescape(a)])
    return expanded

def target_outdated(target,deps):
    """Determine whether a target is out of date.

target_outdated(target,deps) -> 1/0

deps: list of filenames which MUST exist.
    target: single filename which may or may not exist.

If target doesn't exist or is older than any file listed in deps, return
    true, otherwise return false.
    """
    try:
        target_time = os.path.getmtime(target)
    except os.error:
        return 1
    for dep in deps:
        dep_time = os.path.getmtime(dep)
        if dep_time > target_time:
            #print "For target",target,"Dep failed:",dep # dbg
            #print "times (dep,tar):",dep_time,target_time # dbg
            return 1
    return 0

def target_update(target,deps,cmd):
    """Update a target with a given command given a list of dependencies.

target_update(target,deps,cmd) -> runs cmd if target is outdated.

This is just a wrapper around target_outdated() which calls the given
    command if target is outdated."""

if target_outdated(target,deps):
        system(cmd)

ENOLINK = 1998

def link(src, dst):
    """Hard links ``src`` to ``dst``, returning 0 or errno.

Note that the special errno ``ENOLINK`` will be returned if ``os.link`` isn't
    supported by the operating system.
    """

if not hasattr(os, "link"):
        return ENOLINK
    link_errno = 0
    try:
        os.link(src, dst)
    except OSError as e:
        link_errno = e.errno
    return link_errno

def link_or_copy(src, dst):
    """Attempts to hardlink ``src`` to ``dst``, copying if the link fails.

Attempts to maintain the semantics of ``shutil.copy``.

Because ``os.link`` does not overwrite files, a unique temporary file
    will be used if the target already exists, then that file will be moved
    into place.
    """

if os.path.isdir(dst):
        dst = os.path.join(dst, os.path.basename(src))

link_errno = link(src, dst)
    if link_errno == errno.EEXIST:
        if os.stat(src).st_ino == os.stat(dst).st_ino:
            # dst is already a hard link to the correct file, so we don't need
            # to do anything else. If we try to link and rename the file
            # anyway, we get duplicate files - see http://bugs.python.org/issue21876
            return

new_dst = dst + "-temp-%04X" %(random.randint(1, 16**4), )
        try:
            link_or_copy(src, new_dst)
        except:
            try:
                os.remove(new_dst)
            except OSError:
                pass
            raise
        os.rename(new_dst, dst)
    elif link_errno != 0:
        # Either link isn't supported, or the filesystem doesn't support
        # linking, or 'src' and 'dst' are on different filesystems.
        shutil.copy(src, dst)

def ensure_dir_exists(path, mode=0o755):
    """ensure that a directory exists

If it doesn't exist, try to create it and protect against a race condition
    if another process is doing the same.

The default permissions are 755, which differ from os.makedirs default of 777.
    """
    if not os.path.exists(path):
        try:
            os.makedirs(path, mode=mode)
        except OSError as e:
            if e.errno != errno.EEXIST:
                raise
    elif not os.path.isdir(path):
        raise IOError("%r exists but is not a directory" % path)

cmd: