277 lines
9.4 KiB
Python
277 lines
9.4 KiB
Python
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# Copyright (c) 2014-2016 Claudiu Popa <pcmanticore@gmail.com>
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# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
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# For details: https://github.com/PyCQA/astroid/blob/master/COPYING.LESSER
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"""Astroid hooks for six module."""
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import sys
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from textwrap import dedent
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from astroid import MANAGER, register_module_extender
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from astroid.builder import AstroidBuilder
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from astroid.exceptions import AstroidBuildingError, InferenceError
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from astroid import nodes
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SIX_ADD_METACLASS = 'six.add_metaclass'
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def _indent(text, prefix, predicate=None):
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"""Adds 'prefix' to the beginning of selected lines in 'text'.
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If 'predicate' is provided, 'prefix' will only be added to the lines
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where 'predicate(line)' is True. If 'predicate' is not provided,
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it will default to adding 'prefix' to all non-empty lines that do not
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consist solely of whitespace characters.
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"""
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if predicate is None:
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predicate = lambda line: line.strip()
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def prefixed_lines():
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for line in text.splitlines(True):
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yield prefix + line if predicate(line) else line
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return ''.join(prefixed_lines())
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if sys.version_info[0] == 2:
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_IMPORTS_2 = """
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import BaseHTTPServer
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import CGIHTTPServer
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import SimpleHTTPServer
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from StringIO import StringIO
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from cStringIO import StringIO as cStringIO
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from UserDict import UserDict
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from UserList import UserList
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from UserString import UserString
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import __builtin__ as builtins
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import thread as _thread
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import dummy_thread as _dummy_thread
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import ConfigParser as configparser
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import copy_reg as copyreg
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from itertools import (imap as map,
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ifilter as filter,
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ifilterfalse as filterfalse,
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izip_longest as zip_longest,
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izip as zip)
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import htmlentitydefs as html_entities
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import HTMLParser as html_parser
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import httplib as http_client
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import cookielib as http_cookiejar
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import Cookie as http_cookies
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import Queue as queue
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import repr as reprlib
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from pipes import quote as shlex_quote
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import SocketServer as socketserver
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import SimpleXMLRPCServer as xmlrpc_server
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import xmlrpclib as xmlrpc_client
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import _winreg as winreg
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import robotparser as urllib_robotparser
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import Tkinter as tkinter
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import tkFileDialog as tkinter_tkfiledialog
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input = raw_input
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intern = intern
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range = xrange
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xrange = xrange
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reduce = reduce
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reload_module = reload
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class UrllibParse(object):
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import urlparse as _urlparse
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import urllib as _urllib
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ParseResult = _urlparse.ParseResult
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SplitResult = _urlparse.SplitResult
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parse_qs = _urlparse.parse_qs
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parse_qsl = _urlparse.parse_qsl
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urldefrag = _urlparse.urldefrag
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urljoin = _urlparse.urljoin
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urlparse = _urlparse.urlparse
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urlsplit = _urlparse.urlsplit
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urlunparse = _urlparse.urlunparse
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urlunsplit = _urlparse.urlunsplit
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quote = _urllib.quote
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quote_plus = _urllib.quote_plus
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unquote = _urllib.unquote
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unquote_plus = _urllib.unquote_plus
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urlencode = _urllib.urlencode
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splitquery = _urllib.splitquery
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splittag = _urllib.splittag
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splituser = _urllib.splituser
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uses_fragment = _urlparse.uses_fragment
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uses_netloc = _urlparse.uses_netloc
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uses_params = _urlparse.uses_params
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uses_query = _urlparse.uses_query
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uses_relative = _urlparse.uses_relative
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class UrllibError(object):
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import urllib2 as _urllib2
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import urllib as _urllib
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URLError = _urllib2.URLError
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HTTPError = _urllib2.HTTPError
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ContentTooShortError = _urllib.ContentTooShortError
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class DummyModule(object):
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pass
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class UrllibRequest(object):
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import urlparse as _urlparse
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import urllib2 as _urllib2
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import urllib as _urllib
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urlopen = _urllib2.urlopen
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install_opener = _urllib2.install_opener
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build_opener = _urllib2.build_opener
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pathname2url = _urllib.pathname2url
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url2pathname = _urllib.url2pathname
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getproxies = _urllib.getproxies
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Request = _urllib2.Request
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OpenerDirector = _urllib2.OpenerDirector
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HTTPDefaultErrorHandler = _urllib2.HTTPDefaultErrorHandler
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HTTPRedirectHandler = _urllib2.HTTPRedirectHandler
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HTTPCookieProcessor = _urllib2.HTTPCookieProcessor
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ProxyHandler = _urllib2.ProxyHandler
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BaseHandler = _urllib2.BaseHandler
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HTTPPasswordMgr = _urllib2.HTTPPasswordMgr
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HTTPPasswordMgrWithDefaultRealm = _urllib2.HTTPPasswordMgrWithDefaultRealm
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AbstractBasicAuthHandler = _urllib2.AbstractBasicAuthHandler
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HTTPBasicAuthHandler = _urllib2.HTTPBasicAuthHandler
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ProxyBasicAuthHandler = _urllib2.ProxyBasicAuthHandler
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AbstractDigestAuthHandler = _urllib2.AbstractDigestAuthHandler
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HTTPDigestAuthHandler = _urllib2.HTTPDigestAuthHandler
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ProxyDigestAuthHandler = _urllib2.ProxyDigestAuthHandler
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HTTPHandler = _urllib2.HTTPHandler
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HTTPSHandler = _urllib2.HTTPSHandler
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FileHandler = _urllib2.FileHandler
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FTPHandler = _urllib2.FTPHandler
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CacheFTPHandler = _urllib2.CacheFTPHandler
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UnknownHandler = _urllib2.UnknownHandler
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HTTPErrorProcessor = _urllib2.HTTPErrorProcessor
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urlretrieve = _urllib.urlretrieve
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urlcleanup = _urllib.urlcleanup
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proxy_bypass = _urllib.proxy_bypass
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urllib_parse = UrllibParse()
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urllib_error = UrllibError()
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urllib = DummyModule()
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urllib.request = UrllibRequest()
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urllib.parse = UrllibParse()
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urllib.error = UrllibError()
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"""
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else:
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_IMPORTS_3 = """
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import _io
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cStringIO = _io.StringIO
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filter = filter
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from itertools import filterfalse
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input = input
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from sys import intern
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map = map
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range = range
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from imp import reload as reload_module
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from functools import reduce
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from shlex import quote as shlex_quote
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from io import StringIO
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from collections import UserDict, UserList, UserString
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xrange = range
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zip = zip
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from itertools import zip_longest
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import builtins
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import configparser
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import copyreg
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import _dummy_thread
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import http.cookiejar as http_cookiejar
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import http.cookies as http_cookies
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import html.entities as html_entities
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import html.parser as html_parser
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import http.client as http_client
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import http.server
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BaseHTTPServer = CGIHTTPServer = SimpleHTTPServer = http.server
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import pickle as cPickle
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import queue
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import reprlib
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import socketserver
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import _thread
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import winreg
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import xmlrpc.server as xmlrpc_server
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import xmlrpc.client as xmlrpc_client
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import urllib.robotparser as urllib_robotparser
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import email.mime.multipart as email_mime_multipart
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import email.mime.nonmultipart as email_mime_nonmultipart
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import email.mime.text as email_mime_text
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import email.mime.base as email_mime_base
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import urllib.parse as urllib_parse
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import urllib.error as urllib_error
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import tkinter
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import tkinter.dialog as tkinter_dialog
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import tkinter.filedialog as tkinter_filedialog
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import tkinter.scrolledtext as tkinter_scrolledtext
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import tkinter.simpledialog as tkinder_simpledialog
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import tkinter.tix as tkinter_tix
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import tkinter.ttk as tkinter_ttk
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import tkinter.constants as tkinter_constants
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import tkinter.dnd as tkinter_dnd
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import tkinter.colorchooser as tkinter_colorchooser
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import tkinter.commondialog as tkinter_commondialog
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import tkinter.filedialog as tkinter_tkfiledialog
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import tkinter.font as tkinter_font
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import tkinter.messagebox as tkinter_messagebox
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import urllib.request
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import urllib.robotparser as urllib_robotparser
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import urllib.parse as urllib_parse
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import urllib.error as urllib_error
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"""
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if sys.version_info[0] == 2:
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_IMPORTS = dedent(_IMPORTS_2)
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else:
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_IMPORTS = dedent(_IMPORTS_3)
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def six_moves_transform():
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code = dedent('''
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class Moves(object):
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{}
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moves = Moves()
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''').format(_indent(_IMPORTS, " "))
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module = AstroidBuilder(MANAGER).string_build(code)
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module.name = 'six.moves'
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return module
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def _six_fail_hook(modname):
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if modname != 'six.moves':
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raise AstroidBuildingError(modname=modname)
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module = AstroidBuilder(MANAGER).string_build(_IMPORTS)
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module.name = 'six.moves'
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return module
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def transform_six_add_metaclass(node):
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"""Check if the given class node is decorated with *six.add_metaclass*
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If so, inject its argument as the metaclass of the underlying class.
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"""
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if not node.decorators:
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return
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for decorator in node.decorators.nodes:
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if not isinstance(decorator, nodes.Call):
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continue
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try:
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func = next(decorator.func.infer())
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except InferenceError:
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continue
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if func.qname() == SIX_ADD_METACLASS and decorator.args:
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metaclass = decorator.args[0]
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node._metaclass = metaclass
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return node
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register_module_extender(MANAGER, 'six', six_moves_transform)
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register_module_extender(MANAGER, 'requests.packages.urllib3.packages.six',
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six_moves_transform)
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MANAGER.register_failed_import_hook(_six_fail_hook)
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MANAGER.register_transform(nodes.ClassDef, transform_six_add_metaclass)
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