What's New in argparse 1.1 ========================== - Issue #22: Support more customization of version arguments. - Issue #34: Allow better custom type error messages using ArgumentTypeError. - Issue #36: Get "from argparse import *" working. - Issue #37: Stop treating two character alphanumeric flags as numbers. - Issue #38: Better error messages when 'dest' occurs twice for positional arguments. - Issue #39: Better error messages for invalid actions. - Issue #43: Deprecate ArgumentParser(..., version=XXX, ...) and friends. - Issue #46: Allow single character options, e.g. '-' and '+'. - Issue #51: Better error messages for errors like type='int'. - Namespace objects now support "in" (i.e. __contains__). - Usage and help (but not version) messages are written to stdout, not stderr. What's New in argparse 1.0.1 ============================ - Issue #21: Stop rejecting classic classes as type= arguments. - Issue #24: Improve error messages when nargs=0 for store and append actions. - Issue #25 and #17: Silence Python 2.6 buggy Exception.message warnings. - Issue #27: Stop dropping mutually exclusive groups from parents= arguments. - Issue #28: Set svn:eol-style=native properly for text files. - Wrap long prog= values properly. - Make sure literal % can be used in help messages. - Add a NEWS file.