python/pin.py: modularize

python/pin.py

@@ -6,14 +6,26 @@ length.
 import secrets
 import sys
 
+
+def main():
+    """
+    This is where the magic happens.
+    """
     try:
-    wantedCount = int(sys.argv[1])
+        desired_length = int(sys.argv[1])
-except IndexError as noarg:
+    except IndexError:
         print("Enter a digit as an argument!")
 
     try:
-    for i in range(int(wantedCount)):
+        for i in range(int(desired_length)):
             print(secrets.randbelow(10), end="")
-except NameError as noWantedCount:
+            # We satisfy pylint by having the variable here.
+            # TODO:make this a while loop?
+            i += 1
+    except NameError:
         print()
     print()
+
+
+if __name__ == "__main__":
+    main()