Click 8.0 renamed its "die on LANG=C" function so we need to look for that one too (#2227)

CHANGES.md

@@ -1,5 +1,11 @@
 # Change Log
 
+## Unreleased
+
+### _Black_
+
+- Restored compatibility with Click 8.0 on Python 3.6 when LANG=C used (#2227)
+
 ## 21.5b1
 
 ### _Black_

mypy.ini

@@ -33,5 +33,7 @@ cache_dir=/dev/null
 
 [mypy-aiohttp.*]
 follow_imports=skip
-[mypy-_version]
-follow_imports=skip
+[mypy-black]
+# The following is because of `patch_click()`. Remove when
+# we drop Python 3.6 support.
+warn_unused_ignores=False

src/black/__init__.py

@@ -1029,7 +1029,7 @@ def nullcontext() -> Iterator[None]:
 
 
 def patch_click() -> None:
-    """Make Click not crash.
+    """Make Click not crash on Python 3.6 with LANG=C.
 
     On certain misconfigured environments, Python 3 selects the ASCII encoding as the
     default which restricts paths that it can access during the lifetime of the
@@ -1047,7 +1047,9 @@ def patch_click() -> None:
 
     for module in (core, _unicodefun):
         if hasattr(module, "_verify_python3_env"):
-            module._verify_python3_env = lambda: None
+            module._verify_python3_env = lambda: None  # type: ignore
+        if hasattr(module, "_verify_python_env"):
+            module._verify_python_env = lambda: None  # type: ignore
 
 
 def patched_main() -> None: