diff options
Diffstat (limited to 'Lib/wave.py')
| -rw-r--r-- | Lib/wave.py | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/Lib/wave.py b/Lib/wave.py index e723423945..3d01817afd 100644 --- a/Lib/wave.py +++ b/Lib/wave.py @@ -491,14 +491,18 @@ class Wave_write: if not self._nframes: self._nframes = initlength // (self._nchannels * self._sampwidth) self._datalength = self._nframes * self._nchannels * self._sampwidth - self._form_length_pos = self._file.tell() + try: + self._form_length_pos = self._file.tell() + except (AttributeError, OSError): + self._form_length_pos = None self._file.write(struct.pack('<L4s4sLHHLLHH4s', 36 + self._datalength, b'WAVE', b'fmt ', 16, WAVE_FORMAT_PCM, self._nchannels, self._framerate, self._nchannels * self._framerate * self._sampwidth, self._nchannels * self._sampwidth, self._sampwidth * 8, b'data')) - self._data_length_pos = self._file.tell() + if self._form_length_pos is not None: + self._data_length_pos = self._file.tell() self._file.write(struct.pack('<L', self._datalength)) self._headerwritten = True |