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# 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')

PYTHON3_IMPORTERROR_EXCEPTIONS = (

'ModuleNotFoundError',

)

for excname in PYTHON3_IMPORTERROR_EXCEPTIONS:

REVERSE_NAME_MAPPING[('builtins', excname)] = ('exceptions', 'ImportError')

del excname