How does django determine whether users visit the website on mobile or PC?

how does django determine whether users visit websites on mobile or PC?

Apr.11,2021

cannot judge.
because browsers can forge.

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-64f5-1e50727-43666.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e50727-43666.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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