Mercurial > hg > config
comparison python/slice.py @ 699:72d2a2e09c6a
stub: slicing
author | Jeff Hammel <k0scist@gmail.com> |
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date | Tue, 12 Aug 2014 16:49:58 -0700 |
parents | |
children | 2a3323626bcf |
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698:3481ac810b60 | 699:72d2a2e09c6a |
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1 #!/usr/bin/env python | |
2 # -*- coding: utf-8 -*- | |
3 | |
4 """ | |
5 slice a arbitrarily sized list | |
6 """ | |
7 | |
8 # imports | |
9 import argparse | |
10 import os | |
11 import subprocess | |
12 import sys | |
13 | |
14 # module globals | |
15 __all__ = ['main', 'Parser'] | |
16 | |
17 def slice(container, n_chunks): | |
18 size = int(len(container)/n_chunks) | |
19 | |
20 | |
21 class Parser(argparse.ArgumentParser): | |
22 """CLI option parser""" | |
23 def __init__(self, **kwargs): | |
24 kwargs.setdefault('description', __doc__) | |
25 argparse.ArgumentParser.__init__(self, **kwargs) | |
26 self.add_argument('N', type=int, | |
27 help="number of chunks") | |
28 self.add_argument('-M', '--len', dest='length', type=int, | |
29 help="length of list") | |
30 self.options = None | |
31 | |
32 def parse_args(self, *args, **kw): | |
33 options = argparse.ArgumentParser.parse_args(self, *args, **kw) | |
34 self.validate(options) | |
35 self.options = options | |
36 return options | |
37 | |
38 def validate(self, options): | |
39 """validate options""" | |
40 | |
41 def main(args=sys.argv[1:]): | |
42 """CLI""" | |
43 | |
44 # parse command line options | |
45 parser = Parser() | |
46 options = parser.parse_args(args) | |
47 | |
48 if __name__ == '__main__': | |
49 main() | |
50 |