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