python-plexapi/plexapi/compat.py
2019-10-02 20:58:00 -04:00

123 lines
3.5 KiB
Python

# -*- coding: utf-8 -*-
# Python 2/3 compatability
# Always try Py3 first
import os
import sys
from sys import version_info
ustr = str
if version_info < (3,):
ustr = unicode
try:
string_type = basestring
except NameError:
string_type = str
try:
from urllib.parse import urlencode
except ImportError:
from urllib import urlencode
try:
from urllib.parse import quote
except ImportError:
from urllib import quote
try:
from urllib.parse import quote_plus
except ImportError:
from urllib import quote_plus
try:
from urllib.parse import unquote
except ImportError:
from urllib import unquote
try:
from configparser import ConfigParser
except ImportError:
from ConfigParser import ConfigParser
try:
from xml.etree import cElementTree as ElementTree
except ImportError:
from xml.etree import ElementTree
try:
from unittest.mock import patch, MagicMock
except ImportError:
from mock import patch, MagicMock
def makedirs(name, mode=0o777, exist_ok=False):
""" Mimicks os.makedirs() from Python 3. """
try:
os.makedirs(name, mode)
except OSError:
if not os.path.isdir(name) or not exist_ok:
raise
def which(cmd, mode=os.F_OK | os.X_OK, path=None):
"""Given a command, mode, and a PATH string, return the path which
conforms to the given mode on the PATH, or None if there is no such
file.
`mode` defaults to os.F_OK | os.X_OK. `path` defaults to the result
of os.environ.get("PATH"), or can be overridden with a custom search
path.
Copied from https://hg.python.org/cpython/file/default/Lib/shutil.py
"""
# Check that a given file can be accessed with the correct mode.
# Additionally check that `file` is not a directory, as on Windows
# directories pass the os.access check.
def _access_check(fn, mode):
return (os.path.exists(fn) and os.access(fn, mode)
and not os.path.isdir(fn))
# If we're given a path with a directory part, look it up directly rather
# than referring to PATH directories. This includes checking relative to the
# current directory, e.g. ./script
if os.path.dirname(cmd):
if _access_check(cmd, mode):
return cmd
return None
if path is None:
path = os.environ.get("PATH", os.defpath)
if not path:
return None
path = path.split(os.pathsep)
if sys.platform == "win32":
# The current directory takes precedence on Windows.
if not os.curdir in path:
path.insert(0, os.curdir)
# PATHEXT is necessary to check on Windows.
pathext = os.environ.get("PATHEXT", "").split(os.pathsep)
# See if the given file matches any of the expected path extensions.
# This will allow us to short circuit when given "python.exe".
# If it does match, only test that one, otherwise we have to try
# others.
if any(cmd.lower().endswith(ext.lower()) for ext in pathext):
files = [cmd]
else:
files = [cmd + ext for ext in pathext]
else:
# On other platforms you don't have things like PATHEXT to tell you
# what file suffixes are executable, so just pass on cmd as-is.
files = [cmd]
seen = set()
for dir in path:
normdir = os.path.normcase(dir)
if not normdir in seen:
seen.add(normdir)
for thefile in files:
name = os.path.join(dir, thefile)
if _access_check(name, mode):
return name
return None