May I ask how to effectively speed up python multiple nested loops?

involves the calculation of a large amount of data
there are multiple loops nested within the use of pandas for calculation
extremely slow
is there any effective way to speed up?

Jul.19,2022

using matrix for parallel computing, you can save the loop and greatly increase the speed of operation.

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-64f5-1b39be1-2c1b4.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b39be1-2c1b4.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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