Added python check to see if variable is defined

home/public/snippits/python/is_defined.py

@@ -0,0 +1,13 @@
+del foo
+
+try:
+    print(f"Take 1: foo is defined, value {foo}")
+except NameError:
+    print("Take 1: foo isn't defined")
+    foo="foo"
+
+try:
+    print(f"Take 2: foo is defined, value {foo}")
+except NameError:
+    print("Take 2: foo isn't defined")
+    foo="foo"