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pycompat.py
159 lines | 3.3 KiB | text/x-python | PythonLexer
# pycompat.py - portability shim for python 3
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""Mercurial portability shim for python 3.
This contains aliases to hide python version-specific details from the core.
"""
from __future__ import absolute_import
try:
import cPickle as pickle
pickle.dumps
except ImportError:
import pickle
pickle.dumps # silence pyflakes
try:
import httplib
httplib.HTTPException
except ImportError:
import http.client as httplib
httplib.HTTPException
try:
import SocketServer as socketserver
socketserver.ThreadingMixIn
except ImportError:
import socketserver
socketserver.ThreadingMixIn
try:
import xmlrpclib
xmlrpclib.Transport
except ImportError:
import xmlrpc.client as xmlrpclib
xmlrpclib.Transport
try:
import urlparse
urlparse.urlparse
except ImportError:
import urllib.parse as urlparse
urlparse.urlparse
try:
import cStringIO as io
stringio = io.StringIO
except ImportError:
import io
stringio = io.StringIO
try:
import Queue as _queue
_queue.Queue
except ImportError:
import queue as _queue
empty = _queue.Empty
queue = _queue.Queue
class _pycompatstub(object):
pass
def _alias(alias, origin, items):
""" populate a _pycompatstub
copies items from origin to alias
"""
def hgcase(item):
return item.replace('_', '').lower()
for item in items:
try:
setattr(alias, hgcase(item), getattr(origin, item))
except AttributeError:
pass
urlreq = _pycompatstub()
urlerr = _pycompatstub()
try:
import urllib2
import urllib
_alias(urlreq, urllib, (
"addclosehook",
"addinfourl",
"ftpwrapper",
"pathname2url",
"quote",
"splitattr",
"splitpasswd",
"splitport",
"splituser",
"unquote",
"url2pathname",
"urlencode",
"urlencode",
))
_alias(urlreq, urllib2, (
"AbstractHTTPHandler",
"BaseHandler",
"build_opener",
"FileHandler",
"FTPHandler",
"HTTPBasicAuthHandler",
"HTTPDigestAuthHandler",
"HTTPHandler",
"HTTPPasswordMgrWithDefaultRealm",
"HTTPSHandler",
"install_opener",
"ProxyHandler",
"Request",
"urlopen",
))
_alias(urlerr, urllib2, (
"HTTPError",
"URLError",
))
except ImportError:
import urllib.request
_alias(urlreq, urllib.request, (
"AbstractHTTPHandler",
"addclosehook",
"addinfourl",
"BaseHandler",
"build_opener",
"FileHandler",
"FTPHandler",
"ftpwrapper",
"HTTPHandler",
"HTTPSHandler",
"install_opener",
"pathname2url",
"HTTPBasicAuthHandler",
"HTTPDigestAuthHandler",
"HTTPPasswordMgrWithDefaultRealm",
"ProxyHandler",
"quote",
"Request",
"splitattr",
"splitpasswd",
"splitport",
"splituser",
"unquote",
"url2pathname",
"urlopen",
))
import urllib.error
_alias(urlerr, urllib.error, (
"HTTPError",
"URLError",
))
try:
xrange
except NameError:
import builtins
builtins.xrange = range