Adding the exceptions exercise

students/aaron/homework_lesson5/except_exercise.py

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+#!/usr/bin/env python3
+
+"""
+An exercise in playing with Exceptions.
+Make lots of try/except blocks for fun and profit.
+
+Make sure to catch specifically the error you find, rather than all errors.
+"""
+
+from except_test import fun, more_fun, last_fun
+
+
+# Figure out what the exception is, catch it and while still
+# in that catch block, try again with the second item in the list
+first_try = ['spam', 'cheese', 'mr death']
+
+try:
+  joke = fun(first_try[0])
+except NameError:
+  joke = fun(first_try[1])
+
+# Here is a try/except block. Add an else that prints not_joke
+try:
+  not_joke = fun(first_try[2])
+except SyntaxError:
+  print('Run Away!')
+else:
+  print(not_joke)
+
+# What did that do? You can think of else in this context, as well as in
+# loops as meaning: "else if nothing went wrong"
+# (no breaks in  loops, no exceptions in try blocks)
+
+# Figure out what the exception is, catch it and in that same block
+#
+# try calling the more_fun function with the 2nd language in the list,
+# again assigning it to more_joke.
+#
+# If there are no exceptions, call the more_fun function with the last
+# language in the list
+
+# Finally, while still in the try/except block and regardless of whether
+# there were any exceptions, call the function last_fun with no
+# parameters. (pun intended)
+
+langs = ['java', 'c', 'python']
+
+try:
+  more_joke = more_fun(langs[0])
+except IndexError as e:
+  more_joke = more_fun(langs[1])
+else:
+  more_joke = more_fun(langs[2])
+finally:
+  last_fun()

students/aaron/homework_lesson5/except_test.py

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+#!/usr/bin/env python3
+
+"""
+silly little test module that is designed to trigger Exceptions when
+run from the except_exercise.py file
+"""
+
+import time
+
+conclude = "And what leads you to that conclusion?"
+district = "Finest in the district, sir."
+cheese = "It's certainly uncontaminated by cheese."
+clean = "Well, it's so clean."
+shop = "Not much of a cheese shop really, is it?"
+cust = "Customer: "
+clerk = "Shopkeeper: "
+
+
+def fun(reaper):
+    if reaper == 'spam':
+        print(s)
+    elif reaper == 'cheese':
+        print()
+        print('Spam, Spam, Spam, Spam, Beautiful Spam')
+    elif reaper == 'mr death':
+        print()
+        return('{}{}\n{}{}'.format(cust, shop, clerk, district))
+
+
+def more_fun(language):
+    if language == 'java':
+        test = [1, 2, 3]
+        test[5] = language
+    elif language == 'c':
+        print('{}{}\n{}{}'.format(cust, conclude, clerk, clean))
+
+
+def last_fun():
+    print(cust, cheese)
+    time.sleep(1)
+    import antigravity