# HG changeset patch # User Jeff Hammel # Date 1435531370 25200 # Node ID 6194eec4e3b7129312aa183e9e7b433e4ba9c424 # Parent 6667850817bfabc50544513cd67ab8a8afd57472 mv to example diff -r 6667850817bf -r 6194eec4e3b7 python/example/slice.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/python/example/slice.py Sun Jun 28 15:42:50 2015 -0700 @@ -0,0 +1,65 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +slice a arbitrarily sized list +""" + +# imports +import argparse +import os +import subprocess +import sys + +__all__ = ['slice', 'main', 'Parser'] + +def slice(container, n_chunks): + size = int(len(container)/(n_chunks-1)) + retval = [] + start = 0 + for i in range(n_chunks-1): + retval.append(container[start:start+size]) + start += size + retval.append(container[start:]) + return retval + +class Parser(argparse.ArgumentParser): + """CLI option parser""" + def __init__(self, **kwargs): + kwargs.setdefault('description', __doc__) + argparse.ArgumentParser.__init__(self, **kwargs) + self.add_argument('N', type=int, + help="number of chunks") + self.add_argument('-M', '--len', dest='length', type=int, default=29, + help="length of list [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""" + +def main(args=sys.argv[1:]): + """CLI""" + + # parse command line options + parser = Parser() + options = parser.parse_args(args) + + # generate list + seq = range(options.length) + + # chunk list + output = slice(seq, options.N) + + # print output + for chunk in output: + print (",".join([str(i) for i in chunk])) + +if __name__ == '__main__': + main() + diff -r 6667850817bf -r 6194eec4e3b7 python/slice.py --- a/python/slice.py Sun Jun 28 15:28:56 2015 -0700 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,65 +0,0 @@ -#!/usr/bin/env python -# -*- coding: utf-8 -*- - -""" -slice a arbitrarily sized list -""" - -# imports -import argparse -import os -import subprocess -import sys - -__all__ = ['slice', 'main', 'Parser'] - -def slice(container, n_chunks): - size = int(len(container)/(n_chunks-1)) - retval = [] - start = 0 - for i in range(n_chunks-1): - retval.append(container[start:start+size]) - start += size - retval.append(container[start:]) - return retval - -class Parser(argparse.ArgumentParser): - """CLI option parser""" - def __init__(self, **kwargs): - kwargs.setdefault('description', __doc__) - argparse.ArgumentParser.__init__(self, **kwargs) - self.add_argument('N', type=int, - help="number of chunks") - self.add_argument('-M', '--len', dest='length', type=int, default=29, - help="length of list [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""" - -def main(args=sys.argv[1:]): - """CLI""" - - # parse command line options - parser = Parser() - options = parser.parse_args(args) - - # generate list - seq = range(options.length) - - # chunk list - output = slice(seq, options.N) - - # print output - for chunk in output: - print (",".join([str(i) for i in chunk])) - -if __name__ == '__main__': - main() -