问题
I have a some .py files that use spaces for indentation, and I'd like to convert them to tabs.
I could easily hack together something using regexes, but I can think of several edge cases where this approach could fail. Is there a tool that does this by parsing the file and determining the indentation level the same way the python interpreter does?
回答1:
If there are not many files to convert, you can open them in vim, and use the :retab command.
See the vim documentation for more information.
回答2:
Python includes a script for the opposite (tabs to spaces). It's C:\Python24\Tools\Scripts\reindent.py for me
回答3:
:retab will swap tab with spaces, and :retab! will swap spaces with tab. 1 tab = 4 spaces, 4 spaces = 1 tab, depending on your tab setting.
回答4:
If you use Linux, you might also play around with unexpand:
Convert blanks in each FILE to tabs, writing to standard output. With no FILE, or when FILE is -, read standard input.
回答5:
In emacs, M-x tabify will convert spaces to tabs where possible. You'll probably want to set the tab-width variable appropriately.
I don't know if this addresses your concern that spaces be interpreted in the same way as the python interpreter, but you could always load up python-mode and use M-x indent-region.
来源：https://stackoverflow.com/questions/338767/tool-to-convert-python-indentation-from-spaces-to-tabs