Lists and loops

Author: steelcowboy

04_lists.py

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+# Initialize it
+test_list = [1, 2, 3]
+
+# Append 4
+test_list.append(4)
+# Insert 0 at 0th position
+test_list.insert(0, 0)
+
+print("Test list: {}\n".format(test_list))
+
+# Initialize it using its class name
+next_list = list()
+next_list.append(7)
+next_list.append(2)
+next_list.append(5)
+next_list.append(1)
+
+print("Next list: {}".format(next_list))
+print("Sorted next list (does not mutate): {}\n".format(sorted(next_list)))
+
+print("So here's next_list: {}".format(next_list))
+if 3 in next_list:
+    print("3 is here!")
+else:
+    print("No 3 :(")
+
+if 2 in next_list:
+    print("2 is here!")
+else:
+    print("No 2 :(")
+    

05_loops.py

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+# Can define the list to loop through here
+for x in [1, 5, 9, 2]:
+    print("I have a {}".format(x))
+
+# Or loop through an existing object
+cool_stuff = [3, 7, 21, 18]
+
+for num in cool_stuff:
+    print("This {} is cool stuff".format(num))
+
+# Range is a generator object -- we'll go over that later
+for x in range(6):
+    print("{} ".format(x), end='')
+
+# Just print a new line
+print()
+
+go = True
+while go:
+    if input("Now type 'c' to continue: ") == "c":
+        # Note that even when the condition becomes false, the loop code will continue 
+        go = False
+    print("Still going!")
+
+while True:
+    # We'll leave if the user types q 
+    if input("Now type 'q' to quit: ") == "q":
+        break
+    print("Not done yet!")