Remove Undefined from stubs

Part of #680

Author: JamesGuthrie

stubs/2.7/__future__.pyi

@@ -1,11 +1,9 @@
-from typing import Undefined
-
 class _Feature: pass
 
-absolute_import = Undefined(_Feature)
-division = Undefined(_Feature)
-generators = Undefined(_Feature)
-nested_scopes = Undefined(_Feature)
-print_function = Undefined(_Feature)
-unicode_literals = Undefined(_Feature)
-with_statement = Undefined(_Feature)
+absolute_import = None  # type: _Feature
+division = None  # type: _Feature
+generators = None  # type: _Feature
+nested_scopes = None  # type: _Feature
+print_function = None  # type: _Feature
+unicode_literals = None  # type: _Feature
+with_statement = None  # type: _Feature

stubs/2.7/builtins.pyi

@@ -1,7 +1,7 @@
 # Stubs for builtins (Python 2.7)
 
 from typing import (
-    Undefined, TypeVar, Iterator, Iterable, overload,
+    TypeVar, Iterator, Iterable, overload,
     Sequence, Mapping, Tuple, List, Any, Dict, Callable, Generic, Set,
     AbstractSet, Sized, Reversible, SupportsInt, SupportsFloat, SupportsAbs,
     SupportsRound, IO, BinaryIO, Union, AnyStr
@@ -23,7 +23,7 @@ property = object()
 
 class object:
     __doc__ = ''
-    __class__ = Undefined # type: type
+    __class__ = None # type: type
 
     def __init__(self) -> None: pass
     def __eq__(self, o: object) -> bool: pass
@@ -35,7 +35,7 @@ class object:
 class type:
     __name__ = ''
     __module__ = ''
-    __dict__ = Undefined # type: Dict[unicode, Any]
+    __dict__ = None # type: Dict[unicode, Any]
 
     def __init__(self, o: object) -> None: pass
     # TODO: __new__ may have to be special and not a static method.
@@ -578,7 +578,7 @@ class list(Sequence[_T], Reversible[_T], Generic[_T]):
     def append(self, object: _T) -> None: pass
     def extend(self, iterable: Iterable[_T]) -> None: pass
     def pop(self, index: int = -1) -> _T: pass
-    def index(self, object: _T, start: int = 0, stop: int = Undefined(int)) -> int: pass
+    def index(self, object: _T, start: int = 0, stop: int = None) -> int: pass
     def count(self, object: _T) -> int: pass
     def insert(self, index: int, object: _T) -> None: pass
     def remove(self, object: _T) -> None: pass
@@ -709,16 +709,16 @@ class xrange(Sized, Iterable[int], Reversible[int]):
 class module:
     __name__ = ''
     __file__ = ''
-    __dict__ = Undefined # type: Dict[unicode, Any]
+    __dict__ = None # type: Dict[unicode, Any]
 
-True = Undefined # type: bool
-False = Undefined # type: bool
+True = None # type: bool
+False = None # type: bool
 __debug__ = False
 
 long = int
 bytes = str
 
-NotImplemented = Undefined  # type: Any
+NotImplemented = None  # type: Any
 
 def abs(n: SupportsAbs[_T]) -> _T: pass
 def all(i: Iterable) -> bool: pass
@@ -841,7 +841,7 @@ def __import__(name: unicode,
 # Exceptions
 
 class BaseException:
-    args = Undefined # type: Any
+    args = None # type: Any
     def __init__(self, *args: Any) -> None: pass
     def with_traceback(self, tb: Any) -> BaseException: pass
 

stubs/2.7/difflib.pyi

@@ -5,14 +5,14 @@
 # TODO: Support unicode?
 
 from typing import (
-    TypeVar, Callable, Iterable, List, NamedTuple, Sequence, Tuple, Generic, Undefined
+    TypeVar, Callable, Iterable, List, NamedTuple, Sequence, Tuple, Generic
 )
 
 _T = TypeVar('_T')
 
 class SequenceMatcher(Generic[_T]):
     def __init__(self, isjunk: Callable[[_T], bool] = None,
-                 a: Sequence[_T] = Undefined, b: Sequence[_T] = Undefined,
+                 a: Sequence[_T] = b: Sequence[_T],
                  autojunk: bool = True) -> None: pass
     def set_seqs(self, a: Sequence[_T], b: Sequence[_T]) -> None: pass
     def set_seq1(self, a: Sequence[_T]) -> None: pass

stubs/2.7/re.pyi

@@ -5,7 +5,7 @@
 # based on: http://docs.python.org/2.7/library/re.html
 
 from typing import (
-    Undefined, List, Iterator, overload, Callable, Tuple, Sequence, Dict,
+    List, Iterator, overload, Callable, Tuple, Sequence, Dict,
     Generic, AnyStr, Match, Pattern
 )
 

stubs/2.7/sys.pyi

@@ -6,54 +6,54 @@
 # Partially adapted to Python 2.7 by Jukka Lehtosalo.
 
 from typing import (
-    Undefined, List, Sequence, Any, Dict, Tuple, BinaryIO, overload
+    List, Sequence, Any, Dict, Tuple, BinaryIO, overload
 )
 
 # ----- sys variables -----
 abiflags = ''
-argv = Undefined(List[str])
+argv = None  # type: List[str]
 byteorder = ''
-builtin_module_names = Undefined(Sequence[str]) # actually a tuple of strings
+builtin_module_names = None  # type: Sequence[str] # actually a tuple of strings
 copyright = ''
 #dllhandle = 0  # Windows only
 dont_write_bytecode = False
-__displayhook__ = Undefined(Any) # contains the original value of displayhook
-__excepthook__ = Undefined(Any)  # contains the original value of excepthook
+__displayhook__ = None  # type: Any # contains the original value of displayhook
+__excepthook__ = None  # type: Any  # contains the original value of excepthook
 exec_prefix = ''
 executable = ''
 float_repr_style = ''
 hexversion = 0  # this is a 32-bit int
-last_type = Undefined(Any)
-last_value = Undefined(Any)
-last_traceback = Undefined(Any)
+last_type = None  # type: Any
+last_value = None  # type: Any
+last_traceback = None  # type: Any
 maxsize = 0
 maxunicode = 0
-meta_path = Undefined(List[Any])
-modules = Undefined(Dict[str, Any])
-path = Undefined(List[str])
-path_hooks = Undefined(List[Any]) # TODO precise type; function, path to finder
-path_importer_cache = Undefined(Dict[str, Any]) # TODO precise type
+meta_path = None  # type: List[Any]
+modules = None  # type: Dict[str, Any]
+path = None  # type: List[str]
+path_hooks = None  # type: List[Any] # TODO precise type; function, path to finder
+path_importer_cache = None  # type: Dict[str, Any] # TODO precise type
 platform = ''
 prefix = ''
 ps1 = ''
 ps2 = ''
-stdin = Undefined(BinaryIO)
-stdout = Undefined(BinaryIO)
-stderr = Undefined(BinaryIO)
-__stdin__ = Undefined(BinaryIO)
-__stdout__ = Undefined(BinaryIO)
-__stderr__ = Undefined(BinaryIO)
-subversion = Undefined(Tuple[str, str, str])
+stdin = None  # type: BinaryIO
+stdout = None  # type: BinaryIO
+stderr = None  # type: BinaryIO
+__stdin__ = None  # type: BinaryIO
+__stdout__ = None  # type: BinaryIO
+__stderr__ = None  # type: BinaryIO
+subversion = None  # type: Tuple[str, str, str]
 tracebacklimit = 0
 version = ''
 api_version = 0
-warnoptions = Undefined(Any)
+warnoptions = None  # type: Any
 #  Each entry is a tuple of the form (action, message, category, module,
 #    lineno)
 #winver = ''  # Windows only
-_xoptions = Undefined(Dict[Any, Any])
+_xoptions = None  # type: Dict[Any, Any]
 
-flags = Undefined(_flags)
+flags = None  # type: _flags
 class _flags:
     debug = 0
     division_warning = 0
@@ -69,7 +69,7 @@ class _flags:
     quiet = 0
     hash_randomization = 0
 
-float_info = Undefined(_float_info)
+float_info = None  # type: _float_info
 class _float_info:
     epsilon = 0.0   # DBL_EPSILON
     dig = 0         # DBL_DIG
@@ -83,22 +83,22 @@ class _float_info:
     radix = 0       # FLT_RADIX
     rounds = 0      # FLT_ROUNDS
 
-hash_info = Undefined(_hash_info)
+hash_info = None  # type: _hash_info
 class _hash_info:
     width = 0    # width in bits used for hash values
     modulus = 0  # prime modulus P used for numeric hash scheme
     inf = 0      # hash value returned for a positive infinity
     nan = 0      # hash value returned for a nan
     imag = 0     # multiplier used for the imaginary part of a complex number
 
-int_info = Undefined(_int_info)
+int_info = None  # type: _int_info
 class _int_info:
     bits_per_digit = 0  # number of bits held in each digit. Python integers
                         # are stored internally in
                         # base 2**int_info.bits_per_digit
     sizeof_digit = 0    # size in bytes of C type used to represent a digit
 
-version_info = Undefined(_version_info)
+version_info = None  # type: _version_info
 class _version_info:
     major = 0
     minor = 0

stubs/2.7/typing.pyi

@@ -7,7 +7,6 @@ from abc import abstractmethod, ABCMeta
 
 cast = object()
 overload = object()
-Undefined = object()
 Any = object()
 TypeVar = object()
 Generic = object()
@@ -242,12 +241,12 @@ class Match(Generic[AnyStr]):
     pos = 0
     endpos = 0
     lastindex = 0
-    lastgroup = Undefined(AnyStr)
-    string = Undefined(AnyStr)
+    lastgroup = None  # type: AnyStr
+    string = None  # type: AnyStr
 
     # The regular expression object whose match() or search() method produced
     # this match instance.
-    re = Undefined('Pattern[AnyStr]')
+    re = None  # type: 'Pattern[AnyStr]'
 
     def expand(self, template: AnyStr) -> AnyStr: pass
 
@@ -272,7 +271,7 @@ class Pattern(Generic[AnyStr]):
     flags = 0
     groupindex = 0
     groups = 0
-    pattern = Undefined(AnyStr)
+    pattern = None  # type: AnyStr
 
     def search(self, string: AnyStr, pos: int = 0,
                endpos: int = -1) -> Match[AnyStr]: pass

stubs/3.2/__future__.pyi

@@ -1,11 +1,9 @@
-from typing import Undefined
-
 class _Feature: pass
 
-absolute_import = Undefined(_Feature)
-division = Undefined(_Feature)
-generators = Undefined(_Feature)
-nested_scopes = Undefined(_Feature)
-print_function = Undefined(_Feature)
-unicode_literals = Undefined(_Feature)
-with_statement = Undefined(_Feature)
+absolute_import = ...  # type: _Feature
+division = ...  # type: _Feature
+generators = ...  # type: _Feature
+nested_scopes = ...  # type: _Feature
+print_function = ...  # type: _Feature
+unicode_literals = ...  # type: _Feature
+with_statement = ...  # type: _Feature

stubs/3.2/_dummy_thread.pyi

@@ -2,7 +2,7 @@
 
 # NOTE: These are incomplete!
 
-from typing import Undefined, Any
+from typing import Any
 
 class LockType:
     def acquire(self) -> None: pass

stubs/3.2/_io.pyi

@@ -2,7 +2,7 @@
 #
 # NOTE: This dynamically typed stub was automatically generated by stubgen.
 
-from typing import Any, Undefined
+from typing import Any
 
 class _IOBase:
     def __init__(self, *args, **kwargs): pass
@@ -15,7 +15,7 @@ class _IOBase:
     def readable(self): pass
     def readline(self, size: int = -1): pass
     def readlines(self, hint: int = -1): pass
-    def seek(self, offset, whence=Undefined): pass
+    def seek(self, offset, whence): pass
     def seekable(self): pass
     def tell(self): pass
     def truncate(self, size: int = None) -> int: pass
@@ -39,9 +39,9 @@ class _RawIOBase(_IOBase):
     def readall(self): pass
 
 class _TextIOBase(_IOBase):
-    encoding = Undefined(Any)
-    errors = Undefined(Any)
-    newlines = Undefined(Any)
+    encoding = ...  # type: Any
+    errors = ...  # type: Any
+    newlines = ...  # type: Any
     def detach(self): pass
     def read(self, size: int = -1): pass
     def readline(self, size: int = -1): pass