Question

Due

Sunday, November 1st at 11:59 PM

Deliverables

There is one deliverable for this assignment

• hw7.py

Make sure the script obeys all the rules in the Script Requirements page.

Specification

Your script must print a Kelvin to Fahrenheit conversion table and between a minimum and maximum values, and a Fahrenheit to Kelvin conversion also between a minimum and maximum values.

Here is the formula for converting Kelvin to Fahrenheit

Here is the formula for converting Fahrenheit to Kelvin

The script must have 5 functions

• get_int
• kelvin_to_fahrenheit
• kelvin_to_fahrenheit_table
• fahrenheit_to_kelvin
• fahrenheit_to_kelvin_table

get_int

This function must have the following header

def get_int(prompt):

The function prompts the user for a value, converts it to integer and returns the value.

kelvin_to_fahrenheit

This function must have the following header

def kelvin_to_fahrenheit(kelvin):

The function converts a Kelvin temperature to Fahrenheit and returns the Fahrenheit value.

The Fahrenheit value must be an integer.

kelvin_to_fahrenheit_table

This function must have the following header

def kelvin_to_fahrenheit_table(min, max):

The function prints a Kelvin to Fahrenheit conversion table running from min to max.

Before printing the table, the function prints the labels "Kelvin" and "Fahrenheit", followed by a line of dashes.

The Fahrenheit values should align with the "Fahrenheit" label.

See the example below.

fahrenheit_to_kelvin

This function must have the following header

def fahrenheit_to_kelvin(fahrenheit):

The function converts a Fahrenheit temperature to Kelvin and returns the Kelvin value.

The Kelvin value must be an integer.

fahrenheit_to_kelvin_table

This function must have the following header

def fahrenheit_to_kelvin_table(min, max):

The function prints a Fahrenheit to Kelvin conversion table running from min to max.

Before printing the table, the function prints the labels "Fahrenheit" and "Kelvin", followed by a line of dashes.

The Kelvin values should align with the "Kelvin" label.

See the example below.

Script for this assignment

Open an a text editor and create the file hw7.py.

You can use the editor built into IDLE or a program like Sublime.

Test Code

Your hw7.py file must contain the following test code at the bottom of the file

min_kelvin = get_int("Minimum Kelvin temperature: ")
max_kelvin = get_int("Maximum Kelvin temperature: ")
print()
kelvin_to_fahrenheit_table(min_kelvin, max_kelvin)
print()
min_fahrenheit = get_int("Minimum Fahrenheit temperature: ")
max_fahrenheit = get_int("Maximum Fahrenheit temperature: ")
print()
fahrenheit_to_kelvin_table(min_fahrenheit, max_fahrenheit)

You should see something like this

python3 hw7.py
Minimum Kelvin temperature: 255
Maximum Kelvin temperature: 260

Kelvin  Fahrenheit
------------------
255     -1
256     1
257     3
258     5
259     7
260     8

Minimum Fahrenheit temperature: 10
Maximum Fahrenheit temperature: 15

Fahrenheit  Kelvin
-----------------------
10          261
11          261
12          262
13          263
14          263
15          264

The entries in blue are user input.

Suggestions

In other words, write a bit of code, test it, make whatever changes you need to get it working, and go on to the next step.

Write this program in a step-by-step fashion using the technique of incremental development.

1. Copy only the function headers for the file functions listed above into your script file.
   Under each header, write pass.
   Make sure this statement is indented.
   Run the script.
   Fix any errors you find.
2. Remove the pass statement from get_int.
   Replace it with a state that use input in an assignment statement to give the variable number a value.
   Convert number into an integer.
   Return number. Run the script.
   Fix any errors you find.
3. Remove the pass statement from kelvin_to_fahrenheit_table.
   Replace it with a statements that prints the labels and a line of dashes underneath.
   Run the script.
   Fix any errors you find.
4. Write a for loop gives the loop variable kelvin values from min to max.
   Inside the loop print the value of kelvin,
   Run the script.
   Fix any errors you find.
5. Remove the pass statement from kelvin_to_fahrenheit. Replace it with an assignment statement that uses a Kelvin to Fahrenheit conversion formula to give the variable fahrenheit a value.
   Return this value.
   Run the script.
   Fix any errors you find.
6. Repeat the previous 4 steps to complete the script.

Testing on Your Machine

• Open IDLE
• Use the Open command in IDLE to open hw7.py
• Under the Run menu, select Run Module
• Your output should look something like this

  Minimum Kelvin temperature: 255
  Maximum Kelvin temperature: 260
  
  Kelvin  Fahrenheit
  ------------------
  255     -1
  256     1
  257     3
  258     5
  259     7
  260     8
  
  Minimum Fahrenheit temperature: 10
  Maximum Fahrenheit temperature: 15
  
  Fahrenheit  Kelvin
  -----------------------
  10          261
  11          261
  12          262
  13          263
  14          263
  15          264

  The entries in blue are user input.

Unix Setup

• Log in to users3.cs.umb.edu
  You will be in your home directory.
• Go to your it116 directory

  cd it116

• Go to your hw directory

  cd hw

• Create a directory for this exercise

  mkdir  hw7

• Check that the directory was created

  ls

Copy the file to Unix

• Open FileZilla and connect to users3.cs.umb.edu
  You will have to connect using your Unix username and password.
• Copy the file to the to it116/hw/hw7

Testing the script on Unix

• Connect to
  Use an ssh client.
• Go to the directory for this exercise

  cd  it116/hw/hw7

• Run this script

  python3  hw7.py

• Your output should look something like this

  Minimum Kelvin temperature: 255
  Maximum Kelvin temperature: 260
  
  Kelvin  Fahrenheit
  ------------------
  255     -1
  256     1
  257     3
  258     5
  259     7
  260     8
  
  Minimum Fahrenheit temperature: 10
  Maximum Fahrenheit temperature: 15
  
  Fahrenheit  Kelvin
  -----------------------
  10          261
  11          261
  12          262
  13          263
  14          263
  15          264

  The entries in blue are user input.
• If your script does not run on users3 you will lose points

Answer 1

Please find below the code, code screenshots and output screenshots. Please refer to the screenshot of the code to understand the indentation of the code.  Please get back to me if you need any change in code. Else please upvote

CODE:

#Function prompts the user for a value, converts it to integer and returns the value.

def get_int(prompt):

    number = input(prompt) #prompts the user for a value

    number = int(number) # converts the number to integer

    return number #returns the number

#Function converts a Kelvin temperature to Fahrenheit and returns the Fahrenheit value.

def kelvin_to_fahrenheit(kelvin):

    fahrenheit = (kelvin - 273.15) * 9/5 + 32 #converts the kelvin temperature to Fahrenheit

    return round(fahrenheit) #return the fahrenheit temperature

#Function prints a Kelvin to Fahrenheit conversion table running from min to max.

def kelvin_to_fahrenheit_table(min, max):

    print("Kelvin Fahrenheit\n------------------")

    for temp in range(min, max+1): #loop through kelvin values from min to max.

        print(temp, end = "\t") #print kelvin temperature

        print(kelvin_to_fahrenheit(temp)) #calling kelvin_to_fahrenheit() and display the Fahrenheit temperature

#Function converts a Fahrenheit temperature to Kelvin and returns the Kelvin value.      

def fahrenheit_to_kelvin(fahrenheit):

    kelvin = (fahrenheit - 32) * 5/9 + 273.15 #converts the Fahrenheit temperature to kelvin

    return round(kelvin) #return the kelvin temperature

#Function prints a Fahrenheit to Kelvin conversion table running from min to max.  

def fahrenheit_to_kelvin_table(min, max):

    print("Fahrenheit Kelvin\n-----------------------")

    for temp in range(min, max+1): #loop through Fahrenheit values from min to max.

        print(temp, end = "\t    ") #print Fahrenheit temperature

        print(fahrenheit_to_kelvin(temp)) #calling fahrenheit_to_kelvin() and display the Kelvin temperature

#program starts here

min_kelvin = get_int("Minimum Kelvin temperature: ")

max_kelvin = get_int("Maximum Kelvin temperature: ")

print()

kelvin_to_fahrenheit_table(min_kelvin, max_kelvin)

print()

min_fahrenheit = get_int("Minimum Fahrenheit temperature: ")

max_fahrenheit = get_int("Maximum Fahrenheit temperature: ")

print()

fahrenheit_to_kelvin_table(min_fahrenheit, max_fahrenheit)

OUTPUT: