diff options
Diffstat (limited to 'Lib/_pyio.py')
| -rw-r--r-- | Lib/_pyio.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Lib/_pyio.py b/Lib/_pyio.py index 1251078..163cf9d 100644 --- a/Lib/_pyio.py +++ b/Lib/_pyio.py @@ -1129,6 +1129,7 @@ class BufferedReader(_BufferedIOMixin): do at most one raw read to satisfy it. We never return more than self.buffer_size. """ + self._checkClosed("peek of closed file") with self._read_lock: return self._peek_unlocked(size) @@ -1147,6 +1148,7 @@ class BufferedReader(_BufferedIOMixin): """Reads up to size bytes, with at most one read() system call.""" # Returns up to size bytes. If at least one byte is buffered, we # only return buffered bytes. Otherwise, we do one raw read. + self._checkClosed("read of closed file") if size < 0: size = self.buffer_size if size == 0: @@ -1164,6 +1166,8 @@ class BufferedReader(_BufferedIOMixin): def _readinto(self, buf, read1): """Read data into *buf* with at most one system call.""" + self._checkClosed("readinto of closed file") + # Need to create a memoryview object of type 'b', otherwise # we may not be able to assign bytes to it, and slicing it # would create a new object. @@ -1213,6 +1217,7 @@ class BufferedReader(_BufferedIOMixin): def seek(self, pos, whence=0): if whence not in valid_seek_flags: raise ValueError("invalid whence value") + self._checkClosed("seek of closed file") with self._read_lock: if whence == 1: pos -= len(self._read_buf) - self._read_pos |