Howdy all, Python's standard library has modules for configuration file parsing (configparser) and command-line argument parsing (optparse, argparse). I want to write a program that does both, but also:
* Has a cascade of options: default option values, overridden by config file options, overridden by command-line options. * Reads a different, or even additional, configuration file if specified on the command-line (e.g. --config-file foo.conf) and yet still obeys the above cascade. * Allows a single definition of an option (e.g. logging level) to define the same option for parsing from configuration files and the command line. * Unifies the parsed options into a single collection for the rest of the program to access without caring where they came from. How can I achieve this with minimum deviation from the Python standard library? (For anyone interested in gaining StackOverflow points, I'm also asking this as a question there so feel free to post answers on that site <URL:http://stackoverflow.com/questions/6133517/parse-config-file-and-command-line-arguments-to-get-a-single-collection-of-optio>.) -- \ “Apologize, v. To lay the foundation for a future offense.” | `\ —Ambrose Bierce, _The Devil's Dictionary_, 1906 | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
