# HG changeset patch
# User Jeff Hammel <k0scist@gmail.com>
# Date 1512955109 28800
# Node ID 5e05c41337e33c79a573767dd4f95475186c21cd
# Parent  565875bc93b7083cda67bdc9d1f32bdccde039ab
Example: generate passwords

diff -r 565875bc93b7 -r 5e05c41337e3 python/password.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/python/password.py	Sun Dec 10 17:18:29 2017 -0800
@@ -0,0 +1,36 @@
+#!/usr/bin/env python
+
+"""
+password generator
+"""
+
+import argparse
+import random
+import string
+import sys
+
+
+def generate_password(population=string.ascii_letters+string.digits,
+                      length=12):
+    """
+    returns a random password `length` characters long
+    sampled from `population`
+    """
+
+    return ''.join(random.sample(population, length))
+
+
+def main(args=sys.argv[1:]):
+
+    # parse command line
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument('-l', '--length', dest='length',
+                        type=int, default=12,
+                        help="length of password to generate [DEFAULT: %(default)s]")
+    options = parser.parse_args(args)
+
+    # print generated password
+    print (generate_password(length=options.length))
+
+if __name__ == '__main__':
+    main()