Advanced configuration | PyCharm
www.jetbrains.com › help › pycharmDec 03, 2021 · Maximum size of files (in kilobytes) that PyCharm is able to open. Working with large files can affect editor performance and increase memory consumption. The default value is 20000. idea.max.intellisense.filesize. Maximum size of files (in kilobytes) for which PyCharm provides coding assistance.