def open_chunk()

in src/rosbridge/timeseq.py [0:0]


    def open_chunk(self, channel_name, chunk):
        fn = path.join(self.trace_dir, 'chunk_%s_%d.json.gz' % (channel_name, int(chunk)))
        f = gzip.open(fn, 'wb')
        self.files_by_channel[channel_name] = f
        self.chunks_by_channel[channel_name] = chunk
        self.times_by_channel[channel_name] = []

        f.write('{"samples":[')