I did not think about using a global variable, and the top-level try...except solution is interesting. After further thinking, I have to reformulate my initial question:
How do I manage to run code before my imports? For example, I want to make sure that I can use the logging module in the case an import fails, so I want to call logging.basicConfig() before this particular import. Likewise, I could want to import a module whose path is relative to an environment variable, and would want to test if this variable is set before doing so. I have come up with 2 solution templates : >>> import logging >>> >>> main() >>> >>> def pre_import(): ... logging.basicConfig(format='%(message)s') >>> >>> def import(): ... global foo ... import foo >>> >>> def main(): ... pre_import() ... import() >>> import logging >>> logging.basicConfig(format='%(message)s') >>> import foo >>> >>> main() >>> >>> def main(): ... pass To me, the latter looks better, but I could be missing something. In any case, surrounding the entire program with try...except would look like the following? >>> try: ... import logging ... logging.basicConfig(format='%(message)s') ... import foo ... ... main() >>> except Exception: ... # Display simple error message >>> >>> def main(): ... pass -- http://mail.python.org/mailman/listinfo/python-list
