From e7d7a444112faebcf2b97594dd387b4a3f760ecc Mon Sep 17 00:00:00 2001
From: The Fox in the Shell <KellerFuchs@hashbang.sh>
Date: Mon, 6 May 2019 16:00:52 +0000
Subject: [PATCH] Make the signature of ConfigParser.get() polymorphic (#2406)

The documentation [explicitly specifies](https://docs.python.org/3/library/configparser.html#configparser.ConfigParser.get) that `None` is a legitimate `fallback` value.

Thanks to @wiml for suggesting this approach.
---
 stdlib/3/configparser.pyi | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/stdlib/3/configparser.pyi b/stdlib/3/configparser.pyi
index 97df5265b..17501c1e9 100644
--- a/stdlib/3/configparser.pyi
+++ b/stdlib/3/configparser.pyi
@@ -111,8 +111,11 @@ class RawConfigParser(_parser):
     def _get_conv(self, section: str, option: str, conv: Callable[[str], _T], *, raw: bool = ..., vars: Optional[_section] = ..., fallback: _T = ...) -> _T: ...
 
     # This is incompatible with MutableMapping so we ignore the type
-    def get(self, section: str, option: str, *, raw: bool = ..., vars: Optional[_section] = ..., fallback: str = ...) -> str:  # type: ignore
-        ...
+    @overload  # type: ignore
+    def get(self, section: str, option: str, *, raw: bool = ..., vars: Optional[_section] = ...) -> str: ...
+
+    @overload  # type: ignore
+    def get(self, section: str, option: str, *, raw: bool = ..., vars: Optional[_section] = ..., fallback: _T) -> Union[str, _T]: ...
 
     @overload
     def items(self, *, raw: bool = ..., vars: Optional[_section] = ...) -> AbstractSet[Tuple[str, SectionProxy]]: ...