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annotate makeitso/python_package/{{package}}/{{main}}.py @ 206:d9d7bfdb54db

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http://stackoverflow.com/questions/4375327/python-argparse-preformatted-help-text
author Jeff Hammel <k0scist@gmail.com>
date Fri, 21 Nov 2014 14:36:17 -0800
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1 #!/usr/bin/env python
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2 # -*- coding: utf-8 -*-
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3
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4 """
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5 {{description}}
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6 """
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7
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8 # imports
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9 import argparse
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10 import os
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11 import subprocess
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12 import sys
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13
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14 # module globals
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15 __all__ = ['main', 'Parser']
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16 here = os.path.dirname(os.path.realpath(__file__))
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17 string = (str, unicode)
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19 def ensure_dir(directory):
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20 """ensure a directory exists"""
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21 if os.path.exists(directory):
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22 if not os.path.isdir(directory):
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23 raise OSError("Not a directory: '{}'".format(directory))
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24 return directory
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25 os.makedirs(directory)
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26 return directory
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29 class Parser(argparse.ArgumentParser):
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30 """CLI option parser"""
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31 def __init__(self, **kwargs):
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32 kwargs.setdefault('formatter_class', argparse.RawTextHelpFormatter)
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33 kwargs.setdefault('description', __doc__)
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34 argparse.ArgumentParser.__init__(self, **kwargs)
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35 self.options = None
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37 def parse_args(self, *args, **kw):
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38 options = argparse.ArgumentParser.parse_args(self, *args, **kw)
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39 self.validate(options)
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40 self.options = options
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41 return options
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43 def validate(self, options):
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44 """validate options"""
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46 def main(args=sys.argv[1:]):
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47 """CLI"""
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49 # parse command line options
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50 parser = Parser()
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51 options = parser.parse_args(args)
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53 if __name__ == '__main__':
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54 main()