From 866b0c3bf0cbd791d4c2072526568abd74463e84 Mon Sep 17 00:00:00 2001
From: Jukka Lehtosalo <jukka.lehtosalo@iki.fi>
Date: Mon, 10 Aug 2020 15:55:32 +0100
Subject: [PATCH] ConfigParser: accept readline() that takes no arguments
 (#4433)

At runtime readline() is called without arguments, so requiring
an optional argument may result in false positives.
---
 stdlib/2/ConfigParser.pyi           | 4 ++--
 stdlib/2and3/_typeshed/__init__.pyi | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/stdlib/2/ConfigParser.pyi b/stdlib/2/ConfigParser.pyi
index 08812848d..80f0ab1d4 100644
--- a/stdlib/2/ConfigParser.pyi
+++ b/stdlib/2/ConfigParser.pyi
@@ -1,4 +1,4 @@
-from _typeshed import SupportsReadline
+from _typeshed import SupportsNoArgReadline
 from typing import IO, Any, Dict, List, Optional, Sequence, Tuple, Union
 
 DEFAULTSECT: str
@@ -66,7 +66,7 @@ class RawConfigParser:
     def has_section(self, section: str) -> bool: ...
     def options(self, section: str) -> List[str]: ...
     def read(self, filenames: Union[str, Sequence[str]]) -> List[str]: ...
-    def readfp(self, fp: SupportsReadline[str], filename: str = ...) -> None: ...
+    def readfp(self, fp: SupportsNoArgReadline[str], filename: str = ...) -> None: ...
     def get(self, section: str, option: str) -> str: ...
     def items(self, section: str) -> List[Tuple[Any, Any]]: ...
     def _get(self, section: str, conv: type, option: str) -> Any: ...
diff --git a/stdlib/2and3/_typeshed/__init__.pyi b/stdlib/2and3/_typeshed/__init__.pyi
index ed5154364..1236bbdd9 100644
--- a/stdlib/2and3/_typeshed/__init__.pyi
+++ b/stdlib/2and3/_typeshed/__init__.pyi
@@ -151,6 +151,9 @@ class SupportsRead(Protocol[_T_co]):
 class SupportsReadline(Protocol[_T_co]):
     def readline(self, __length: int = ...) -> _T_co: ...
 
+class SupportsNoArgReadline(Protocol[_T_co]):
+    def readline(self) -> _T_co: ...
+
 class SupportsWrite(Protocol[_T_contra]):
     def write(self, __s: _T_contra) -> int: ...