commenting on chapter 2 and 3

Chapter 2.py

@@ -1,9 +1,14 @@
+#create a variable
 p_name = 'Ben'
 
+#print() print string hello, with variable p_name
 print("Hello " + p_name + "!")
 
+# .upper() makes all capitals
 print(p_name.upper())
+#.lower() makes all lowercase
 print(p_name.lower())
+#.title() capitalises first letter of each word
 print(p_name.title())
 
 print('a famous person once said "that aint me"')
@@ -15,14 +20,16 @@
 print(famous_person.title() + message)
 
 print("Python")
+#\t adds a tab space
 print("\tPython")
-
+#\n makes a new line
 print(f'\t{famous_person},' + f'\n {message}')
 
 white_space = "   Ben  . "
 
 print(white_space)
 
+#lstrip() strips any whitespace on the left, rstrip() strips from the right, strip() removes all white space
 print(white_space.lstrip())
 print(white_space.rstrip())
 print(white_space.strip())

Chapter 3.py

@@ -1,5 +1,7 @@
+# [] is a list
 names = ["ben", "angela", "alice"]
 print(names)
+#using [number] grabs item in the list. Starts from 0
 print(names[0])
 print(names[1])
 print(names[2])
@@ -20,8 +22,14 @@
 print("Hello " + dinner_list[1].title() + ", would you like to come to dinner?")
 print("Hello " + dinner_list[2].title() + ", would you like to come to dinner?")
 
-print("Unfortunately, " + names[1].title() + " can't make it for dinner")
+#len(names) will show how many items in a list
+#str(len(names)) will turn that into a string if you want to print it
+coming = str(len(dinner_list))
+print("\nThere are " + coming + " people coming to dinner")
 
+print("\nUnfortunately, " + names[1].title() + " can't make it for dinner")
+
+#modifies the object in the list at position 1 from Alice to Fermi
 dinner_list[1] = "fermi"
 
 print("Hello " + dinner_list[0].title() + ", would you like to come to dinner?")
@@ -30,8 +38,10 @@
 
 print("\nHey, " + dinner_list[0].title() + ", " + dinner_list[1].title() + ", " + dinner_list[2].title() + ", we now have a bigger table, does anyone want to invite anyone?")
 
+# .inset(0, kelly) inserts name into postion zero
 dinner_list.insert(0, "kelly")
 dinner_list.insert(2, "chase")
+#.append adds item to the end of the list
 dinner_list.append("aaron")
 
 print("\nHello " + dinner_list[0].title() + ", would you like to come to dinner?")
@@ -41,8 +51,12 @@
 print("Hello " + dinner_list[4].title() + ", would you like to come to dinner?")
 print("Hello " + dinner_list[5].title() + ", would you like to come to dinner?")
 
+coming = str(len(dinner_list))
+print("\nThere are " + coming + " people coming to dinner")
+
 print("\nUnfortunately the table is not going to make it in time, and there is only space for two people :(")
 
+# dinner_list.pop() removes the last item from the list. In the below case we are taking that last item and putting it into a variable so we can inform user of cancelation
 dinner_list_popped = dinner_list.pop()
 print("Sorry, " + dinner_list_popped + " we have to cancel your seat, I am so sorry!")
 dinner_list_popped = dinner_list.pop()
@@ -52,9 +66,33 @@
 dinner_list_popped = dinner_list.pop()
 print("Sorry, " + dinner_list_popped + " we have to cancel your seat, I am so sorry!")
 
+coming = str(len(dinner_list))
+print("\nThere are " + coming + " people coming to dinner")
+
 print(dinner_list)
 
+# del in combination with [-1] deletes the last item in the list
 del dinner_list[-1]
 print(dinner_list)
 del dinner_list[-1]
-print(dinner_list)
+print(dinner_list)
+
+locations = ["antarctica", "siberia", "russia", "egypt", "jordan"]
+print(locations)
+#alphabetically sorts locations, not permanent
+print(sorted(locations))
+print(locations)
+#reverse=True sorts locations variables not permanent
+print(sorted(locations, reverse=True))
+print(locations)
+# reverse reverses the list permanently
+locations.reverse()
+print(locations)
+locations.reverse()
+print(locations)
+# .sort sorts the list alphabetically permanent
+locations.sort()
+print(locations)
+#.sort(reverse=True) sorts list in reverse alphabetical permanently
+locations.sort(reverse=True)
+print(locations)