diff options
| -rw-r--r-- | Lib/asyncio/windows_utils.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Lib/asyncio/windows_utils.py b/Lib/asyncio/windows_utils.py index e664296..5f8327e 100644 --- a/Lib/asyncio/windows_utils.py +++ b/Lib/asyncio/windows_utils.py @@ -147,6 +147,8 @@ class PipeHandle: return self._handle def fileno(self): + if self._handle is None: + raise ValueError("I/O operatioon on closed pipe") return self._handle def close(self, *, CloseHandle=_winapi.CloseHandle): |