Add potential error to the unpacking arguments lecture.

jslvtr · jslvtr · commit 6eb304fc07b2 · 2019-04-30T15:13:51.000+01:00
diff --git a/19_unpacking_arguments/code.py b/19_unpacking_arguments/code.py
@@ -99,3 +99,13 @@ def post(url, data=None, json=None, **kwargs):
 """
 
 # While the implementation is irrelevant at this stage, what it allows is for the caller of `post()` to pass arguments to `request()`.
+
+# -- Error when unpacking --
+
+
+def myfunction(**kwargs):
+    print(kwargs)
+
+
+myfunction(**"Bob")  # Error, must be mapping
+myfunction(**None)  # Error
