Fix mypy error

psf · Sep 23, 2022 · 2ff413f · 2ff413f
1 parent 4fde8a8
commit 2ff413f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/black/files.py b/src/black/files.py
@@ -194,7 +194,7 @@ def parse_req_python_specifier(requires_python: str) -> Optional[TargetVersion]:
 
     target_version_map = {f"3.{v.value}": v for v in TargetVersion}
     compatible_versions = specifier_set.filter(target_version_map)
-    target_version_str: Optional[str] = next(compatible_versions, None)
+    target_version_str: Optional[str] = next(iter(compatible_versions), None)
     if target_version_str is not None:
         return target_version_map.get(target_version_str)
     return None