There are two options in the Code menu of PyCharm: Reformat Code and Auto-Indent Lines. They seem to be doing the same thing: reformatting the code. Is there any difference?
Reformat Code can process multiple files in the same directory. Is this the difference? One file vs. batch processing?
Auto-Indent Lines does just that and nothing more.
Reformat Code does much more -- it can add missing/remove unnecessary spaces/braces, split statement into multiple lines etc -- all accordingly to your Code Style.