解决了 空指针异常 Bug

mymodule.py

@@ -0,0 +1,16 @@
+def generate_full_name(firstname, lastname):
+      space = ' '
+      fullname = firstname + space + lastname
+      return fullname
+
+def sum_two_nums (num1, num2):
+    return num1 + num2
+gravity = 9.81
+person = {
+    "firstname": "Asabeneh",
+    "age": 250,
+    "country": "Finland",
+    "city":'Helsinki'
+}
+
+