From c36403a6535a75ccbeda56659f36c54885395a7b Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@dropbox.com>
Date: Sat, 25 Mar 2017 12:30:55 -0700
Subject: [PATCH] Revert "Improved annotations for select.select() (#1080)"

This reverts commit 7e05d47b81316230b374fb9945430b880f3e77fc.

See discussion at https://github.com/python/typeshed/pull/1080
---
 stdlib/2/select.pyi |  8 ++------
 stdlib/3/select.pyi | 13 +++++--------
 2 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/stdlib/2/select.pyi b/stdlib/2/select.pyi
index d5821b499e59..a88311e971e2 100644
--- a/stdlib/2/select.pyi
+++ b/stdlib/2/select.pyi
@@ -1,6 +1,6 @@
 """Stubs for the 'select' module."""
 
-from typing import Any, Optional, Tuple, Iterable, List, Sequence, TypeVar
+from typing import Any, Optional, Tuple, Iterable, List
 
 EPOLLERR = ...  # type: int
 EPOLLET = ...  # type: int
@@ -66,11 +66,7 @@ POLLWRBAND = ...  # type: int
 POLLWRNORM = ...  # type: int
 
 def poll() -> epoll: ...
-
-_R = TypeVar("_R")
-_W = TypeVar("_W")
-_X = TypeVar("_X")
-def select(rlist: Sequence[_R], wlist: Sequence[_W], xlist: Sequence[_X], timeout: float = None) -> Tuple[List[_R], List[_W], List[_X]]: ...
+def select(rlist, wlist, xlist, timeout: float = None) -> Tuple[List, List, List]: ...
 
 class error(Exception): ...
 
diff --git a/stdlib/3/select.pyi b/stdlib/3/select.pyi
index 2f445121017d..83446f03d9d0 100644
--- a/stdlib/3/select.pyi
+++ b/stdlib/3/select.pyi
@@ -2,7 +2,7 @@
 
 # NOTE: These are incomplete!
 
-from typing import Any, Tuple, List, Sequence, TypeVar
+from typing import Any, Tuple, List, Sequence
 
 class error(Exception): ...
 
@@ -21,10 +21,7 @@ class poll:
     def unregister(self, fd: Any) -> None: ...
     def poll(self, timeout: int = ...) -> List[Tuple[int, int]]: ...
 
-# Not the canonical naming choices, but these map to the select arguments. We
-# need 3 because nothing in select prevents the read set from being socket
-# objects and the write set from being file descriptors.
-_R = TypeVar("_R")
-_W = TypeVar("_W")
-_X = TypeVar("_X")
-def select(rlist: Sequence[_R], wlist: Sequence[_W], xlist: Sequence[_X], timeout: float = ...) -> Tuple[List[_R], List[_W], List[_X]]: ...
+def select(rlist: Sequence, wlist: Sequence, xlist: Sequence,
+           timeout: float = ...) -> Tuple[List[Any],
+                                           List[Any],
+                                           List[Any]]: ...