def info(line):
    if output:
        output.write(line)
        output.write('\n')

    try:
        os.makedirs(path)
    except (OSError, IOError) as exc:
        if not os.path.isdir(path):
            info('Path already exists: %s' % path)
        else:
            raise
    else:
        info('Created directory %s' % path)

    segments = path.split(os.path.sep)
    for i in xrange(len(segments)):
        init_filename = os.path.sep.join(segments[:i+1] + ['__init__.py'])
        if not os.path.isfile(init_filename):
            try:
                open(init_filename, 'w').close()
            except (OSError, IOError) as exc:
                raise
            else:
                info('Created file %s' % (init_filename,))
        else:
            info('File already exists: %s' % (init_filename,))