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File Path Logger (Python recipe) by Stephen Chappell
ActiveState Code (http://code.activestate.com/recipes/578358/)

If you want a list of directories and the files they contain, this program will log such information to a file for you. For those wondering how to walk directories and their contents, this little recipe provides an engine function that provides a simple demonstration of the os.walk function.

Python, 28 lines
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import os, sys

def main(path=''):
    if len(sys.argv) == 1 and path:
        try:
            assert os.path.isdir(path)
            engine(path)
        except:
            print 'ERROR: Internal Path'
    else:
        path = ' '.join(sys.argv[1:])
        try:
            assert os.path.isdir(path)
            engine(path)
        except:
            print os.path.basename(sys.argv[0]), '<directory>'

def engine(path):
    log = open('files.log', 'w')
    for path, dirs, files in os.walk(path):
        log.write('%s\n' % path)
        for name in files:
            log.write('\t%s\n' % name)
        log.write('\n')
    log.close()

if __name__ == '__main__':
    main('C:\\')
Tags: demonstration