如何告诉Python脚本（cygwin）在当前（或相对）目录中工作？

I have lots of directories with text files written using (g)vim, and I have written a handful of utilities that I find useful in Python. I start off the utilities with a pound-bang-/usr/bin/env python line in order to use the Python that is installed under cygwin. I would like to type commands like this:I have lots of directories with text files writ