virtualEnvironment/lib/python2.7/site-packages/coverage/collector.py
def start(self):
        """Start this Tracer.

        Return a Python function suitable for use with sys.settrace().

        """
        self.thread = threading.currentThread()
        sys.settrace(self._trace)
        return self._trace
def start(self):
        self.thread = threading.currentThread()
        sys.settrace(self._trace)
        return self._trace
def start ( self ) : self . thread = threading . currentThread ( ) sys . settrace ( self . _trace ) return self . _trace
Start this Tracer.

        Return a Python function suitable for use with sys.settrace().
Start this Tracer .