Reformat File Dialog
The dialog appears when you press Ctrl+Shift+Alt+L in the editor of the current file. If you chooseon the main menu or press Ctrl+Alt+L, PyCharm tries to reformat the source code of the specified scope automatically.
Only VCS changed text
If this checkbox is selected, then reformatting will apply only to the files that have been changed locally, but not yet checked in to the repository.
Choose this option to have the currently selected fragment of source code reformatted.
Choose this option to have all the source code in the current file reformatted.
Select this checkbox to remove unused import statements from the code within the selected scope.
Select this checkbox to reorder your source code entries according to the configurations specified in the Arrangement tab of your Code Style settings.
Click this button to start reformatting the source code within the specified scope.