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annotate python/walk.py @ 842:03f9657514e9

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while we might not want Octave *that* much, we will never want OCAML
author Jeff Hammel <k0scist@gmail.com>
date Sun, 09 Jul 2017 15:01:16 -0700
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1 #!/usr/bin/env python
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2
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3 """
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4 illustration of walking a directory structure
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5 """
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6
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7 # imports
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8 import argparse
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9 import os
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10 import sys
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11
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12
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13 def ensure_dir(path):
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14 """ensures `path` is a directory"""
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15 return os.path.isdir(path)
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18 def all_files(directory):
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19 filenames = []
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20 for dirpath, dirnames, files in os.walk('/home/jhammel/music'):
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21 filenames.extend([os.path.join(dirpath, f) for f in files])
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22 return sorted(filenames)
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23
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25 def main(args=sys.argv[1:]):
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26 """CLI"""
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27
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29 # parse command line
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30
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31 # sanity
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32 if not args:
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33 print "Usage: %s directory [directory] [...]" % os.path.basename(sys.argv[0])
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34
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35 # process command line
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36 for arg in args:
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37 if os.path.isdir(arg):
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38 for i in all_files(arg):
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39 print i
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40 elif os.path.isfile(arg):
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41 print os.path.abspath(arg)
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42 else:
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43 sys.stderr.write("'%s' not a file or directory\n" % arg)
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46 if __name__ == '__main__':
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47 main()