[Python-checkins] bpo-38407: Add docstrings for typing.SupportsXXX classes. (GH-16644)

[Miss Islington (bot)]

https://github.com/python/cpython/commit/7162440a7247f77d22cd937143f358fd5ac85af4
commit: 7162440a7247f77d22cd937143f358fd5ac85af4
branch: 3.8
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: GitHub <noreply at github.com>
date: 2019-10-08T07:14:57-07:00
summary:

bpo-38407: Add docstrings for typing.SupportsXXX classes. (GH-16644)

(cherry picked from commit 8252c52e57283515ace5d4251584255dc5c60eb5)

Co-authored-by: Serhiy Storchaka <storchaka at gmail.com>

files:
M Lib/typing.py

diff --git a/Lib/typing.py b/Lib/typing.py
index eeebd85772788..bd30da90ad796 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -1513,6 +1513,7 @@ def new_user(user_class: Type[U]) -> U:
 
 @runtime_checkable
 class SupportsInt(Protocol):
+    """An ABC with one abstract method __int__."""
     __slots__ = ()
 
     @abstractmethod
@@ -1522,6 +1523,7 @@ def __int__(self) -> int:
 
 @runtime_checkable
 class SupportsFloat(Protocol):
+    """An ABC with one abstract method __float__."""
     __slots__ = ()
 
     @abstractmethod
@@ -1531,6 +1533,7 @@ def __float__(self) -> float:
 
 @runtime_checkable
 class SupportsComplex(Protocol):
+    """An ABC with one abstract method __complex__."""
     __slots__ = ()
 
     @abstractmethod
@@ -1540,6 +1543,7 @@ def __complex__(self) -> complex:
 
 @runtime_checkable
 class SupportsBytes(Protocol):
+    """An ABC with one abstract method __bytes__."""
     __slots__ = ()
 
     @abstractmethod
@@ -1549,6 +1553,7 @@ def __bytes__(self) -> bytes:
 
 @runtime_checkable
 class SupportsIndex(Protocol):
+    """An ABC with one abstract method __index__."""
     __slots__ = ()
 
     @abstractmethod
@@ -1558,6 +1563,7 @@ def __index__(self) -> int:
 
 @runtime_checkable
 class SupportsAbs(Protocol[T_co]):
+    """An ABC with one abstract method __abs__ that is covariant in its return type."""
     __slots__ = ()
 
     @abstractmethod
@@ -1567,6 +1573,7 @@ def __abs__(self) -> T_co:
 
 @runtime_checkable
 class SupportsRound(Protocol[T_co]):
+    """An ABC with one abstract method __round__ that is covariant in its return type."""
     __slots__ = ()
 
     @abstractmethod