1 files changed, 20 insertions, 0 deletions
diff --git a/challenge-272/steven-wilson/python/ch-1.py b/challenge-272/steven-wilson/python/ch-1.py
new file mode 100644
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+++ b/challenge-272/steven-wilson/python/ch-1.py
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+#!/usr/bin/env python3
+
+
+def defang_ip_address(address):
+    ''' Given a valid IPv4 address, return the defanged version of the given IP
+    address.
+
+        A defanged IP address replaces every period “.” with “[.]".
+    >>> defang_ip_address('1.1.1.1')
+    '1[.]1[.]1[.]1'
+    >>> defang_ip_address('255.101.1.0')
+    '255[.]101[.]1[.]0'
+    '''
+    return address.replace(".", "[.]")
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod(verbose=True)