Conversion between python str and list

how python converts between str and list without destroying the original content.

for example, [{"key": "value"}, {"key": "value"}] go to "[{"key": "value"}, {"key": "value"}]", and then go back to [{"key": "value"}, {"key": "value"}]

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Sep.10,2021

Don't use eval, or str
use the json module

   ast.literal_eval  . 

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-64f5-1b3fa84-2c4b9.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3fa84-2c4b9.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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