• Due
• What You Need to Do
• Setup On Your Machine
• Specification
• Output
• Suggestions
• Testing on Your Machine
• Copy the Script to Unix
• Testing the Script on Unix (Optional)

Due

Sunday, March 1st at 11:59 PM

What You Need to Do

• Create the script hw5.py
• Make sure it obeys the rules in Rules for Homework Scripts
• Make sure the script has a hashbang line and is executable
• Move it to an an hw5 directory on pe15.cs.umb.edu

Setup On Your Machine

• Open a text editor.
  I would suggest the text editor built into the program IDLE.
• Save the file as hw5.py

Specification

• This script prints a table of kilometer values and their equivalent miles values
• It must do this using a for and the range function
• See Class Notes 10 for details
• Kilometers can be converted to miles using the formula

  miles = km / 1.609344

• The Miles values must be converted to integers
• This must ask the user for maximum and minimum kilometer values
• It should then print a blank line
• The labels "Kms and "Miles" should appear at the top of the table
• Then it prints a table of kilometers and their equivalent miles values
• Under these labels should be a line of dashes
• The centimeter values should line up with the "Miles" label
• See the example below

Output

• The output should look something like this

  Minimum: 1
  Maximum: 10
  
  Kms      Miles
  ---------------------
  1               1
  2               1
  3               2
  4               2
  5               3
  6               4
  7               4
  8               5
  9               6
  10              6

• The text in blue is what the user enters

Suggestions

• Write this script in stages
• Test your script at each step
• Print the steps below
• And check them off as you finish each one

1. Get values for the variables min and max using assignment statements and the input function.
   Convert both min and max to integers.
   Print max and min.
   Run the script.
   Fix any errors you find.
2. Remove the print statement you created above.
   Write a print statement that prints a blank line.
   Print the labels "Kms" and "Miles".
   Print a line of dashes under the labels.
   Run the script.
   Fix any errors you find.
   
3. Write a for using the loop variable km and the range function.
   Range should produce all the values between min and max.
   Think carefully when choosing the arguments for range.
   Inside the loop print the value of km.
   Run the script.
   Fix any errors you find.
4. Remove the print statement inside the for loop.
   Use the formula above to calculate the miles value and store it in the variable miles.
   Now you need to use round to turn miles into an integer.
   Print both km and miles.
   Run the script.
   Fix any errors you find.
5. Now you have to make sure the miles values align with the "Miles" label.
   This can be done using the escape sequence for the tab character, \t.
   Change the print statement for the header label.
   Instead of giving print 2 arguments, give it one, a string that concatenates "Kms", \t and "Miles".
   Now we need to change the statement that prints km and miles.
   Remove the two arguments to print and replace them with a single string.
   That string concatenates the values of km and miles turned into strings with \t between them.
   So change the argument to print to

   str(miles) + \t + str(km)

   Run the script.
   Fix any errors you find.

Testing on Your Machine

• Open IDLE
• Use the Open command in IDLE to open hw5.py
• Run your script inside IDLE
• Your output should look something like this

  Minimum: 1
  Maximum: 10
  
  Kms      Miles
  --------------
  1        1
  2        1
  3        2
  4        2
  5        3
  6        4
  7        4
  8        5
  9        6
  10       6

• The text in blue is what you enter at the command line

Copy the Script to Unix

• Open FileZilla and connect to pe15.cs.umb.edu
• Go to your it116 directory
• Go to your hw directory
• Right-click in the whitespace inside the hw directory
• Enter hw5 in the dialog box
• Click and drag your script from the bottom left panel to the bottom right panel

Testing the Script on Unix (Optional)

• Connect to pe15.cs.umb.edu using an ssh client like putty.exe (Windows) or ssh (Mac)
• Go to the directory for this exercise

  cd  it116/hw/hw5

• Run this script

  python3 hw5.py

• You should see something like this

  Minimum: 1
  Maximum: 10
  
  Kms      Miles
  --------------
  1       1
  2       1
  3       2
  4       2
  5       3
  6       4
  7       4
  8       5
  9       6
  10      6

• The text in blue is what you enter at the command line

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