added comments to the rest of the files

Author: Devon Jue

sampleimport.py

@@ -1,14 +1,30 @@
+# import command line argument reader 'argv' from the 'sys' python module
 from sys import argv
+
+# takes the two arguments after the 'python' command,
+# and assigns to the variables 'script' and 'user_name'
 script, user_name = argv
+
+# assigns the string with an arrow and space to the variable 'prompt'
 prompt = '> '
+
+# user_name, the second argument, and 'sampleimport.py' replace %s in the order listed
 print "Hi %s, I'm the %s script." % (user_name, script)
 print "I'd like to ask you a few questions."
+
+# replaces %s with the variable user_name and prints
 print "Do you like me %s?" % user_name
+
+# prints '> ' and allows user to input a value, assigns user input to the 'likes' variable
 likes = raw_input(prompt)
+
+# repeats the process above two more times
 print "Where do you live %s?" % user_name
 lives = raw_input(prompt)
 print "What kind of computer do you have?"
 computer = raw_input(prompt)
+
+# takes the last three user inputs in order and inserts into the last print statement, replacing %r
 print """
 Alright, so you said %r about liking me.
 You live in %r. Not sure where that is.

sampleinput.py

@@ -1,5 +1,11 @@
+# import command line argument reader 'argv' from the 'sys' python module
 from sys import argv
+
+# takes the four arguments after the 'python' command,
+# and assigns to the variables 's', 'f', 'ss', and 't'
 s,f,ss,t=argv
+
+# prints the four arguments on separate lines with text
 print "the script is" , s
 print "var1 1 is" , f
 print "var 2 is" , ss

sampleloops.py

@@ -1,13 +1,26 @@
+# assigns numbers 1 through 3 to an array
 arr=[1,2,3]
+
+# assigns three names to an array
 arrstr=["ashu" , "himu" , "piyu"]
+
+# loops through each number from the number array, and prints the number
 for num in arr:
     print "numbers are %d" %num
+
+# loops through each name from the name array, and prints the name
 for name in arrstr:
     print "names are %s" %name
+
+# initializes an empty array
 arrinput=[]
+
+# asks the user for a input four times and pushes inputs into an array
 for i in range(0,4):
     print "enter element number %d" %i
     number = raw_input("> ")
     arrinput.append(number)
+
+# loops through the input array and prints each input
 for inp in arrinput:
     print "elements are %r" %inp   

sampleprint.py

@@ -1,19 +1,31 @@
+# prints an empty space since comments are ignored
 print #"Hello World!"
+
+# prints the following strings and separate lines
 print "Hello Again"
 print "I like typing this."
 print "This is fun."
 print 'Yay! Printing.'
 print "I'd much rather you 'not'."
 print 'I "said" do not touch this.'
+
+# prints the boolean value of this mathematical comparison
 print 3 + 2 < 5 - 7
+
+# assigning numerical values to variables
 cars = 100
 space_in_a_car = 4.0
 drivers = 30
 passengers = 90
+
+# performing mathematical operations on the variables above,
+# and assigning the answers to new variables
 cars_not_driven = cars - drivers
 cars_driven = drivers
 carpool_capacity = cars_driven * space_in_a_car
 average_passengers_per_car = passengers / cars_driven
+
+# the new variables are printed on separate lines
 print "We need to put about", average_passengers_per_car, "in each car."
 print "We have", passengers, "to carpool today."
 print "There will be", cars_not_driven, "empty cars today."

samplewhile.py

@@ -6,14 +6,33 @@
 
 # SAMPLE CODE
 
+# initialize the while iterator to 0
 i = 0
+
+# initialze empty numbers array
 numbers = []
+
+# keep running this while loop as long as 'i' is less than 6
 while i < 6:
+
+  # prints the value of i at the beginning of the loop
   print "At the top i is %d" % i
+
+  # adds the number i to the number array
   numbers.append(i)
+
+  # increase the number i by 1
   i = i + 1
+
+  # prints the current numbers array
   print "Numbers now: ", numbers
+
+  # prints the value of i at the end of the loop
   print "At the bottom i is %d" % i
-  print "The numbers: "
+
+# prints the numbers of the numbers array,
+# every value of i during the loop before it exited (0 through 5)
+# since the while loop exited when i reached 6
+print "The numbers: "
 for num in numbers:
   print num