diff --git a/Lib/bz2.py b/Lib/bz2.py index 37918a8b536..87bed214d0a 100644 --- a/Lib/bz2.py +++ b/Lib/bz2.py @@ -159,21 +159,18 @@ class BZ2File(io.BufferedIOBase): raise ValueError("I/O operation on closed file") def _check_can_read(self): - if self.closed: - raise ValueError("I/O operation on closed file") if self._mode not in (_MODE_READ, _MODE_READ_EOF): + self._check_not_closed() raise io.UnsupportedOperation("File not open for reading") def _check_can_write(self): - if self.closed: - raise ValueError("I/O operation on closed file") if self._mode != _MODE_WRITE: + self._check_not_closed() raise io.UnsupportedOperation("File not open for writing") def _check_can_seek(self): - if self.closed: - raise ValueError("I/O operation on closed file") if self._mode not in (_MODE_READ, _MODE_READ_EOF): + self._check_not_closed() raise io.UnsupportedOperation("Seeking is only supported " "on files open for reading") if not self._fp.seekable():