__init__.py 文件源码

def __delitem__(self, key):
        """Delete a slice of Entries.

        @param key: index or range of Entry numbers to delete
        @type key: slice or int
        @note: Attributes do not 'grow' or 'shrink' as entries are added
               or removed. Indexes of entries never change and there is no
               way to 'insert'.
        """
        if key is Ellipsis:
            key = slice(None, None, None)
        if not hasattr(key, 'indices'):
            idx = (key, key + 1, 1)
        else:
            idx = key.indices(self.max_idx() + 1)
        for i in range(*idx):
            self._call(const.SELECT_, self.ENTRY_, ctypes.c_long(i),
                       const.DELETE_, self.ENTRY_)