Issue #20876: correctly close temporary file in test.support.fs_is_case_insensitive()
diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index 0ef2e8a..7ef6980 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -2134,16 +2134,15 @@
def fs_is_case_insensitive(directory):
"""Detects if the file system for the specified directory is case-insensitive."""
- base_fp, base_path = tempfile.mkstemp(dir=directory)
- case_path = base_path.upper()
- if case_path == base_path:
- case_path = base_path.lower()
- try:
- return os.path.samefile(base_path, case_path)
- except FileNotFoundError:
- return False
- finally:
- os.unlink(base_path)
+ with tempfile.NamedTemporaryFile(dir=directory) as base:
+ base_path = base.name
+ case_path = base_path.upper()
+ if case_path == base_path:
+ case_path = base_path.lower()
+ try:
+ return os.path.samefile(base_path, case_path)
+ except FileNotFoundError:
+ return False
class SuppressCrashReport: