Edit: _compat_pickle.py
# This module is used to map the old Python 2 names to the new names used in # Python 3 for the pickle module. This needed to make pickle streams # generated with Python 2 loadable by Python 3. # This is a copy of lib2to3.fixes.fix_imports.MAPPING. We cannot import # lib2to3 and use the mapping defined there, because lib2to3 uses pickle. # Thus, this could cause the module to be imported recursively. IMPORT_MAPPING = { '__builtin__' : 'builtins', 'copy_reg': 'copyreg', 'Queue': 'queue', 'SocketServer': 'socketserver', 'ConfigParser': 'configparser', 'repr': 'reprlib', 'tkFileDialog': 'tkinter.filedialog', 'tkSimpleDialog': 'tkinter.simpledialog', 'tkColorChooser': 'tkinter.colorchooser', 'tkCommonDialog': 'tkinter.commondialog', 'Dialog': 'tkinter.dialog', 'Tkdnd': 'tkinter.dnd', 'tkFont': 'tkinter.font', 'tkMessageBox': 'tkinter.messagebox', 'ScrolledText': 'tkinter.scrolledtext', 'Tkconstants': 'tkinter.constants', 'Tix': 'tkinter.tix', 'ttk': 'tkinter.ttk', 'Tkinter': 'tkinter', 'markupbase': '_markupbase', '_winreg': 'winreg', 'thread': '_thread', 'dummy_thread': '_dummy_thread', 'dbhash': 'dbm.bsd', 'dumbdbm': 'dbm.dumb', 'dbm': 'dbm.ndbm', 'gdbm': 'dbm.gnu', 'xmlrpclib': 'xmlrpc.client', 'SimpleXMLRPCServer': 'xmlrpc.server', 'httplib': 'http.client', 'htmlentitydefs' : 'html.entities', 'HTMLParser' : 'html.parser', 'Cookie': 'http.cookies', 'cookielib': 'http.cookiejar', 'BaseHTTPServer': 'http.server', 'test.test_support': 'test.support', 'commands': 'subprocess', 'urlparse' : 'urllib.parse', 'robotparser' : 'urllib.robotparser', 'urllib2': 'urllib.request', 'anydbm': 'dbm', '_abcoll' : 'collections.abc', } # This contains rename rules that are easy to handle. We ignore the more # complex stuff (e.g. mapping the names in the urllib and types modules). # These rules should be run before import names are fixed. NAME_MAPPING = { ('__builtin__', 'xrange'): ('builtins', 'range'), ('__builtin__', 'reduce'): ('functools', 'reduce'), ('__builtin__', 'intern'): ('sys', 'intern'), ('__builtin__', 'unichr'): ('builtins', 'chr'), ('__builtin__', 'unicode'): ('builtins', 'str'), ('__builtin__', 'long'): ('builtins', 'int'), ('itertools', 'izip'): ('builtins', 'zip'), ('itertools', 'imap'): ('builtins', 'map'), ('itertools', 'ifilter'): ('builtins', 'filter'), ('itertools', 'ifilterfalse'): ('itertools', 'filterfalse'), ('itertools', 'izip_longest'): ('itertools', 'zip_longest'), ('UserDict', 'IterableUserDict'): ('collections', 'UserDict'), ('UserList', 'UserList'): ('collections', 'UserList'), ('UserString', 'UserString'): ('collections', 'UserString'), ('whichdb', 'whichdb'): ('dbm', 'whichdb'), ('_socket', 'fromfd'): ('socket', 'fromfd'), ('_multiprocessing', 'Connection'): ('multiprocessing.connection', 'Connection'), ('multiprocessing.process', 'Process'): ('multiprocessing.context', 'Process'), ('multiprocessing.forking', 'Popen'): ('multiprocessing.popen_fork', 'Popen'), ('urllib', 'ContentTooShortError'): ('urllib.error', 'ContentTooShortError'), ('urllib', 'getproxies'): ('urllib.request', 'getproxies'), ('urllib', 'pathname2url'): ('urllib.request', 'pathname2url'), ('urllib', 'quote_plus'): ('urllib.parse', 'quote_plus'), ('urllib', 'quote'): ('urllib.parse', 'quote'), ('urllib', 'unquote_plus'): ('urllib.parse', 'unquote_plus'), ('urllib', 'unquote'): ('urllib.parse', 'unquote'), ('urllib', 'url2pathname'): ('urllib.request', 'url2pathname'), ('urllib', 'urlcleanup'): ('urllib.request', 'urlcleanup'), ('urllib', 'urlencode'): ('urllib.parse', 'urlencode'), ('urllib', 'urlopen'): ('urllib.request', 'urlopen'), ('urllib', 'urlretrieve'): ('urllib.request', 'urlretrieve'), ('urllib2', 'HTTPError'): ('urllib.error', 'HTTPError'), ('urllib2', 'URLError'): ('urllib.error', 'URLError'), } PYTHON2_EXCEPTIONS = ( "ArithmeticError", "AssertionError", "AttributeError", "BaseException", "BufferError", "BytesWarning", "DeprecationWarning", "EOFError", "EnvironmentError", "Exception", "FloatingPointError", "FutureWarning", "GeneratorExit", "IOError", "ImportError", "ImportWarning", "IndentationError", "IndexError", "KeyError", "KeyboardInterrupt", "LookupError", "MemoryError", "NameError", "NotImplementedError", "OSError", "OverflowError", "PendingDeprecationWarning", "ReferenceError", "RuntimeError", "RuntimeWarning", # StandardError is gone in Python 3, so we map it to Exception "StopIteration", "SyntaxError", "SyntaxWarning", "SystemError", "SystemExit", "TabError", "TypeError", "UnboundLocalError", "UnicodeDecodeError", "UnicodeEncodeError", "UnicodeError", "UnicodeTranslateError", "UnicodeWarning", "UserWarning", "ValueError", "Warning", "ZeroDivisionError", ) try: WindowsError except NameError: pass else: PYTHON2_EXCEPTIONS += ("WindowsError",) for excname in PYTHON2_EXCEPTIONS: NAME_MAPPING[("exceptions", excname)] = ("builtins", excname) MULTIPROCESSING_EXCEPTIONS = ( 'AuthenticationError', 'BufferTooShort', 'ProcessError', 'TimeoutError', ) for excname in MULTIPROCESSING_EXCEPTIONS: NAME_MAPPING[("multiprocessing", excname)] = ("multiprocessing.context", excname) # Same, but for 3.x to 2.x REVERSE_IMPORT_MAPPING = dict((v, k) for (k, v) in IMPORT_MAPPING.items()) assert len(REVERSE_IMPORT_MAPPING) == len(IMPORT_MAPPING) REVERSE_NAME_MAPPING = dict((v, k) for (k, v) in NAME_MAPPING.items()) assert len(REVERSE_NAME_MAPPING) == len(NAME_MAPPING) # Non-mutual mappings. IMPORT_MAPPING.update({ 'cPickle': 'pickle', '_elementtree': 'xml.etree.ElementTree', 'FileDialog': 'tkinter.filedialog', 'SimpleDialog': 'tkinter.simpledialog', 'DocXMLRPCServer': 'xmlrpc.server', 'SimpleHTTPServer': 'http.server', 'CGIHTTPServer': 'http.server', # For compatibility with broken pickles saved in old Python 3 versions 'UserDict': 'collections', 'UserList': 'collections', 'UserString': 'collections', 'whichdb': 'dbm', 'StringIO': 'io', 'cStringIO': 'io', }) REVERSE_IMPORT_MAPPING.update({ '_bz2': 'bz2', '_dbm': 'dbm', '_functools': 'functools', '_gdbm': 'gdbm', '_pickle': 'pickle', }) NAME_MAPPING.update({ ('__builtin__', 'basestring'): ('builtins', 'str'), ('exceptions', 'StandardError'): ('builtins', 'Exception'), ('UserDict', 'UserDict'): ('collections', 'UserDict'), ('socket', '_socketobject'): ('socket', 'SocketType'), }) REVERSE_NAME_MAPPING.update({ ('_functools', 'reduce'): ('__builtin__', 'reduce'), ('tkinter.filedialog', 'FileDialog'): ('FileDialog', 'FileDialog'), ('tkinter.filedialog', 'LoadFileDialog'): ('FileDialog', 'LoadFileDialog'), ('tkinter.filedialog', 'SaveFileDialog'): ('FileDialog', 'SaveFileDialog'), ('tkinter.simpledialog', 'SimpleDialog'): ('SimpleDialog', 'SimpleDialog'), ('xmlrpc.server', 'ServerHTMLDoc'): ('DocXMLRPCServer', 'ServerHTMLDoc'), ('xmlrpc.server', 'XMLRPCDocGenerator'): ('DocXMLRPCServer', 'XMLRPCDocGenerator'), ('xmlrpc.server', 'DocXMLRPCRequestHandler'): ('DocXMLRPCServer', 'DocXMLRPCRequestHandler'), ('xmlrpc.server', 'DocXMLRPCServer'): ('DocXMLRPCServer', 'DocXMLRPCServer'), ('xmlrpc.server', 'DocCGIXMLRPCRequestHandler'): ('DocXMLRPCServer', 'DocCGIXMLRPCRequestHandler'), ('http.server', 'SimpleHTTPRequestHandler'): ('SimpleHTTPServer', 'SimpleHTTPRequestHandler'), ('http.server', 'CGIHTTPRequestHandler'): ('CGIHTTPServer', 'CGIHTTPRequestHandler'), ('_socket', 'socket'): ('socket', '_socketobject'), }) PYTHON3_OSERROR_EXCEPTIONS = ( 'BrokenPipeError', 'ChildProcessError', 'ConnectionAbortedError', 'ConnectionError', 'ConnectionRefusedError', 'ConnectionResetError', 'FileExistsError', 'FileNotFoundError', 'InterruptedError', 'IsADirectoryError', 'NotADirectoryError', 'PermissionError', 'ProcessLookupError', 'TimeoutError', ) for excname in PYTHON3_OSERROR_EXCEPTIONS: REVERSE_NAME_MAPPING[('builtins', excname)] = ('exceptions', 'OSError')
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