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| author | Serhiy Storchaka <storchaka@gmail.com> | 2013-11-16 11:04:00 (GMT) |
|---|---|---|
| committer | Serhiy Storchaka <storchaka@gmail.com> | 2013-11-16 11:04:00 (GMT) |
| commit | 7714ebbe0e7556bbfa6b768e434042b55474939c (patch) | |
| tree | edfc3e4daeaca4f88a3efb384c1a34bdf7f808b1 /Lib/wave.py | |
| parent | a7a34a83f3f2b9b319cb6f379f6e189066233c76 (diff) | |
| download | cpython-7714ebbe0e7556bbfa6b768e434042b55474939c.zip cpython-7714ebbe0e7556bbfa6b768e434042b55474939c.tar.gz cpython-7714ebbe0e7556bbfa6b768e434042b55474939c.tar.bz2 | |
Issue #5202: Added support for unseekable files in the wave module.
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 e723423..3d01817 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 |