@_handle_container_not_found
    def delete_metadata(self, container, prefix=None):
        """
        Removes all of the container's metadata.

        By default, all metadata beginning with the standard container metadata
        prefix ('X-Container-Meta-') is removed. If you wish to remove all
        metadata beginning with a different prefix, you must specify that
        prefix.
        """
        # Add the metadata prefix, if needed.
        if prefix == None:
            prefix = CONTAINER_META_PREFIX
        new_meta = {}
        curr_meta = self.get_metadata(container, prefix=prefix)
        for ckey in curr_meta:
            new_meta[ckey] = ""
        uri = "/%s" % utils.get_name(container)
        resp, resp_body = self.api.method_post(uri, headers=new_meta)
        return 200 <= resp.status_code <= 299
dataset/ETHPy150Open rackspace/pyrax/pyrax/object_storage.py/ContainerManager.delete_metadata/operator `is` -> `==`