How to understand this paragraph in the python redis source code?

    if len(response) != len(commands):
        self.connection.disconnect()
        raise ResponseError("Wrong number of response items from "
                            "pipeline execution")
                            

under what circumstances, the lengths of response and commands are not the same. Find the answer
line 3351 of redis/client.py source code

Apr.12,2022

the simplest scenario is that the data returned by the server is returned multiple times, so the length will be inconsistent

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3a60a-2c1ed.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3a60a-2c1ed.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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