Mercurial > hg > numerics
view numerics/text_display.py @ 93:b755a8d946de
stub: txt display
author | Jeff Hammel <k0scist@gmail.com> |
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date | Mon, 02 Mar 2015 18:35:16 -0800 |
parents | |
children | b5aea10e611d |
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#!/usr/bin/env python # -*- coding: utf-8 -*- """ text display """ # imports import argparse # module globals __all__ = ['main', 'frac', 'FracParser'] block = '' def frac(*fractions, width=20, bar='│'): """display fractions""" raise NotImplementedError('TODO') # -> record TODO items class FracParser(argparse.ArgumentParser): """CLI option parser""" def __init__(self, **kwargs): kwargs.setdefault('formatter_class', argparse.RawTextHelpFormatter) kwargs.setdefault('description', __doc__) argparse.ArgumentParser.__init__(self, **kwargs) self.add_argument('fraction', type=float, nargs='+' help="fractions to display") self.add_argument('-w', '--width', dest='width', type=int, default=20, help="width to display [DEFAULT: %(default)s]") self.options = None def parse_args(self, *args, **kw): options = argparse.ArgumentParser.parse_args(self, *args, **kw) self.validate(options) self.options = options return options def validate(self, options): """validate options""" if options.width < 1: self.error("Width must be greater than zero (You gave: {})".format(options.width)) def main(args=sys.argv[1:]): """CLI""" # parse command line options parser = FracParser() options = parser.parse_args(args) if __name__ == '__main__': main()