• 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 2nd 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 inches and their equivalent centimeter values
• It must do this using a for and the range function
• See Class Notes 10 for details
• inches can be converted to centimeters using the formula

  cm = inches * 2.54

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

Output

• The output should look something like this

  Minimum: 20
  Maximum: 30
  
  Inches	Centimeters
  -------------------
  20	51
  21	53
  22	56
  23	58
  24	61
  25	64
  26	66
  27	69
  28	71
  29	74
  30	76

• 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 "inches" and "Centimeters".
   Print a line of dashes under the labels.
   Run the script.
   Fix any errors you find.
   
3. Write a for using the loop variable inches 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 inches.
   Run the script.
   Fix any errors you find.
4. Remove the print statement inside the for loop.
   Use the formula above to calculate the centimeters value and store it in the variable cm.
   Use round to turn this value into an integer.
   Print both inches and cm.
   Run the script.
   Fix any errors you find.
5. Now you have to make sure the centimeter values align with the "centimeters" label.
   This can be done using the escape sequence for the tab character, \t.
   Replace the space between "inches" and "centimeters" in the label with \t.
   Now we need to concatenate the values of inches and cm into a string with \t between them.
   But numbers cannot be concatenated with strings.
   So you have to run the str string conversion function on both inches and cm.
   The easiest way to do this is to create the variable line which gets the value formed by concatenating str(inches) with \t and concatenating that with str(cm).
   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: 20
  Maximum: 30
  
  Inches	Centimeters
  -------------------
  20	51
  21	53
  22	56
  23	58
  24	61
  25	64
  26	66
  27	69
  28	71
  29	74
  30	76

• 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: 20
  Maximum: 30
  
  Inches	Centimeters
  -------------------
  20	51
  21	53
  22	56
  23	58
  24	61
  25	64
  26	66
  27	69
  28	71
  29	74
  30	76

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

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