Lab 8: Python Programming III 

In this lab, you will write a program that finds the largest number of
a sequence.  First, your program asks the user to enter an integer
number.  Then the program creates a sequence of random digits and
outputs the largest digit in the sequence.  The number entered by the
user determines the size of the sequence.  For example, if the user
enters 6, then the sequence should have 6 random digits.

The program will begin by printing "Please enter a positive integer:"

The user will type in a positive integer followed by the <enter> key.

If the user enters something other than a positive integer (e.g.,
negative number, zero, letters), the program will print "This is not a
positive integer. Please enter a positive integer:" and the user gets
another try.  This loops ends when the user enters a positive integer.
For example, suppose the user enters the integer "6".

The program will create a sequence of 6 random digits.  For example,
suppose the program creates the sequence [3, 0, 2, 5, 2, 7].  The
program will print "The random sequence is [3, 0, 2, 5, 2, 7].
The largest number in the sequence is 7.  Press enter to exit:"

Programming the assignment:

Open the python IDLE GUI.  As in Lab #6, you will be using the
raw_input function to get the user input, and printing out the final
"Press enter to exit:".  There is more than one way to do this lab, so
we will not give step-by-step instructions.  Here are some hints:

  Your program should first import the random module.  Right after
  that, you must put in this line of code:  random.seed(1)

  You must check the user's input is actually an integer greater than
  0.  You can do this by using a while loop to keep asking the user
  until he/she enters the correct input.

  Once you get the input, you may use the randrange() function in the
  random module.  For example, random.randrange(10) will generate a
  random integer number less than 10.

  To fill your sequence with the number of integers specified by the
  user, you may use a for loop.  Inside the for loop, you should call
  randrange to generate a random number and add that to your sequence.

  To find the largest number, you may use a for loop to go through
  each number in your sequence and determine which one is the largest.

Turning in the program: Use my.ucdavis.edu to handin the program.  The
program name should be named largestnumber.py. You do not need to
handin a hard copy.