How to use pandas to sort and add according to the values of two columns in one dataset and fill another dataset as required?

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what should I do with Python? thank you.

Oct.25,2021

PivotTable


df.groupby(["a", "b"]).b.count().unstack("b").fillna(0)
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-64f5-1e55d51-45353.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e55d51-45353.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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