[pycharm] How to make PyCharm always show line numbers

Using Search bar

  1. Press 2 times Shift
  2. Paste /editor /appearance/ and then
  3. Click on Show line numbers toggle button

For Windows and Linux

File | Settings | Editor | General | Appearance 

For macOS

IntelliJ IDEA | Preferences | Editor | General | Appearance 

Using shortcut

Ctrl+Alt+S

Then

Editor > General > Appearance

Click on Show line numbers toggle button.


Pycharm Official Doc (Appearance)