Fix abstract classes in 2.7 (#2247)

Part of #1476.

stdlib/2/tempfile.pyi

@@ -1,17 +1,6 @@
-# Stubs for tempfile
-# Ron Murawski <ron@horizonchess.com>
-
-# based on http: //docs.python.org/3.3/library/tempfile.html
-# Adapted for Python 2.7 by Michal Pokorny
-
-# TODO: Don't use basestring. Use Union[str, bytes] or AnyStr for arguments.
-#       Avoid using Union[str, bytes] for return values, as it implies that
-#       an isinstance() check will often be required, which is inconvenient.
-
-from typing import Tuple, IO, Union, AnyStr, Any, overload, Iterator, List, Type, Optional
-
-import thread
-import random
+from typing import Tuple, IO, Union, AnyStr, Any, overload, Iterator, List, Iterable, Optional
+from thread import LockType
+from random import Random
 
 TMP_MAX = ...  # type: int
 tempdir = ...  # type: str
@@ -19,28 +8,46 @@ template = ...  # type: str
 _name_sequence = ...  # type: Optional[_RandomNameSequence]
 
 class _RandomNameSequence:
-    _rng = ...  # type: random.Random
-    _rng_pid = ...  # type: int
-    characters = ...  # type: str
-    mutex = ...  # type: thread.LockType
-    rng = ...  # type: random.Random
-    def __iter__(self) -> "_RandomNameSequence": ...
+    characters: str = ...
+    mutex: LockType
+    @property
+    def rng(self) -> Random: ...
+    def __iter__(self) -> _RandomNameSequence: ...
     def next(self) -> str: ...
     # from os.path:
     def normcase(self, path: AnyStr) -> AnyStr: ...
 
 class _TemporaryFileWrapper(IO[str]):
-    close_called = ...  # type: bool
-    delete = ...  # type: bool
-    file = ...  # type: IO
-    name = ...  # type: Any
-    def __init__(self, file: IO, name, delete: bool = ...) -> None: ...
+    delete: bool
+    file: IO
+    name: Any
+    def __init__(self, file: IO, name: Any, delete: bool = ...) -> None: ...
     def __del__(self) -> None: ...
-    def __enter__(self) -> "_TemporaryFileWrapper": ...
+    def __enter__(self) -> _TemporaryFileWrapper: ...
     def __exit__(self, exc, value, tb) -> bool: ...
     def __getattr__(self, name: unicode) -> Any: ...
     def close(self) -> None: ...
     def unlink(self, path: unicode) -> None: ...
+    # These methods don't exist directly on this object, but
+    # are delegated to the underlying IO object through __getattr__.
+    # We need to add them here so that this class is concrete.
+    def __iter__(self) -> Iterator[str]: ...
+    def fileno(self) -> int: ...
+    def flush(self) -> None: ...
+    def isatty(self) -> bool: ...
+    def next(self) -> str: ...
+    def read(self, n: int = ...) -> str: ...
+    def readable(self) -> bool: ...
+    def readline(self, limit: int = ...) -> str: ...
+    def readlines(self, hint: int = ...) -> List[str]: ...
+    def seek(self, offset: int, whence: int = ...) -> int: ...
+    def seekable(self) -> bool: ...
+    def tell(self) -> int: ...
+    def truncate(self, size: Optional[int] = ...) -> int: ...
+    def writable(self) -> bool: ...
+    def write(self, s: str) -> int: ...
+    def writelines(self, lines: Iterable[str]) -> None: ...
+
 
 # TODO text files