def reset(self):
        # A dictionary mapping filenames to dicts with linenumber keys,
        # or mapping filenames to dicts with linenumber pairs as keys.
        self.data = {}

        # A cache of the results from should_trace, the decision about whether
        # to trace execution in a file. A dict of filename to (filename or
        # None).
        self.should_trace_cache = {}

        # Our active Tracers.
        self.tracers = []
Clear collected data, and prepare to collect more.
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/coverage/collector.py/Collector.reset