I’ve looked over several questions on Stack Overflow for how to convert spaces to tabs without finding what I need. There seem to be more questions about how to convert tabs to spaces, but I’m trying to do the opposite.
In Vim I’ve tried :retab and :retab! without luck, but I believe those are actually for going from tabs to spaces anyways.
I tried both expand and unexpand at the command prompt without any luck.
Here is the file in question:
http://gdata-python-client.googlecode.com/hg-history/a9ed9edefd61a0ba0e18c43e448472051821003a/samples/docs/docs_v3_example.py
How can I convert leading spaces to tabs using either Vim or the shell?