def begin(self):
        """
        Begin recording coverage information.
        """
        log.debug("Coverage begin")
        self.skipModules = sys.modules.keys()[:]
        if self.coverErase:
            log.debug("Clearing previously collected coverage statistics")
            self.coverInstance.combine()
            self.coverInstance.erase()
        self.coverInstance.exclude('#pragma[: ]+[nN][oO] [cC][oO][vV][eE][rR]')
        self.coverInstance.load()
        self.coverInstance.start()
Begin recording coverage information.