Save/load like matlab?

I wonder if there is a way to save and load all python variables just like matlab does, so I can build a code step by step by loading previous states. I am handling a python processing code for very large files and multiple processing steps. Each time I find a bug, I have to run the whole thing ag

File existence check with partial filename

I learned that I can check the existence of a file using os.path.isfile("filename"). What if I need to check if there is a file that contains "HV" in the filename? What should I do? Thank you, Sang-Ho -- http://mail.python.org/mailman/listinfo/python-list