def pop(self, key, default=_sentinel):
        """
        Removes the specified key and returns the corresponding value.
        If key is not found, the default is returned if given, otherwise KeyError is raised.

        :param key: The key
        :param default: The default value
        :return: The value
        """
        if default is not _sentinel:
            tup = self._data.pop(key.lower(), default)
        else:
            tup = self._data.pop(key.lower())
        if tup is not default:
            return tup[1]
        else:
            return default
def pop(self, key, default=_sentinel):
        """
        Removes the specified key and returns the corresponding value.
        If key is not found, the default is returned if given, otherwise KeyError is raised.

        :param key: The key
        :param default: The default value
        :return: The value
        """
        if default is not _sentinel:
            tup = self._data.pop(key.lower(), default)
        else:
            tup = self._data.pop(key.lower())
        if tup is not default:
            return tup[1]
        else:
            return default
def pop ( self , key , default = _sentinel ) : if default is not _sentinel : tup = self . _data . pop ( key . lower ( ) , default ) else : tup = self . _data . pop ( key . lower ( ) ) if tup is not default : return tup [ 1 ] else : return default
Removes the specified key and returns the corresponding value.
        If key is not found, the default is returned if given, otherwise KeyError is raised.

        :param key: The key
        :param default: The default value
        :return: The value
Removes the specified key and returns the corresponding value . If key is not found the default is returned if given otherwise KeyError is raised .