initial creation

py3interm/EXAMPLES/set_comprehension.py

@@ -0,0 +1,7 @@
+#!/usr/bin/env python
+
+import re
+
+with open("../DATA/mary.txt") as mary_in:
+    s = {w.lower()  for ln in mary_in  for w in re.split(r'\W+', ln) if w} #<1>
+print(s)