def dst_to_src(self,dst_file):
        m=re.match(self.dst_path+"/(.*)$",dst_file)
        if (m is None):
            return(None)
        rel_path=m.group(1)
        return(self.src_uri+'/'+rel_path)
Constructor.
dataset/ETHPy150Open resync/resync/resync/mapper.py/Map.dst_to_src--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/api/users.py/User.__init__