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Invalidate caches

Last modified: 06 July 2022

PyCharm caches a great number of files for all projects that you have ever worked with in this IDE version, therefore the system cache may become overloaded. Sometimes the caches will never be needed again, for example, if you work with frequent short-term projects.

When you invalidate the cache, PyCharm removes the cache files for all projects ever run in the current version of the IDE. The files will be recreated the next time you open these projects.

Note the following before you proceed:

  • The caches will not be deleted until you restart PyCharm.

  • Opening and closing a project without invalidating the cache does not result in deleting any cached files.

  • Local History is not deleted when you invalidate the cache unless you explicitly enable this option in the Invalidate Caches dialog. However, mind that Local History has a retention period of 5 working days by default.

For details on where various user-specific files are stored, see Directories used by the IDE.