Python 3.* HALP PLEASE!

Development Software Development
1

Let me preface this by saying not only have I never used Python before - I have never programmed ANYTHING before.

I have to write a python (script/program?) in python 3.*
The program must be able to have a user input 3 different unsurance company names, and their associated monthly costs.
Then the program must calculate the annual cost, as paying annual instead of monthly saves 3%
Then it must list the companys from most to least expensive, and show how much is saved by paying annualy

NOTE: Only allowed to use sequence. Not allowed to use selection or repletion

So far I have this

print ("This tool will compare insurance premiums for three companies")
name_A = (input("Please type the name of the first company, then press enter:"))
annual_A = int(input("Please enter the cost of the annual payment:"))
name_B = (input("Please type the name of the second company, then press enter:"))
annual_B = int(input("Please enter the cost of the annual payment:"))
name_C = (input("Please type the name of the third company, then press enter:"))
annual_C = int(input("Please enter the cost of the annual payment:"))
monthly_A = annual_A / 12 * 1.03
monthly_B = annual_B / 12 * 1.03
monthly_C = annual_C / 12 * 1.03
saving_A = annual_A * 0.03
saving_B = annual_B * 0.03
saving_C = annual_C * 0.03
print ("The monthly costs ordered most to least expensive are")

How do I A) make a list, and B) order it by value?

2

what's this for? work? school? fun?

3

something in me doubts that if they have never programmed anything before, that they would start out with sorting algorithms, before they even knew how to make a list.

1 Like
4

I would start with this.
1. https://docs.python.org/3/tutorial/datastructures.html
2. https://docs.python.org/3/howto/sorting.html

2 Likes
5

Its for University

6

What class? This is your assignment?

7

Yep - Introduction to Programming

9

Here’s a solution demonstrating some Python language features

def insurance_input()
  """Returns insurance company name and annual cost"
  name = input("Please type the name of the first company, then press enter:")
  annual_cost = int(input("Please enter the cost of the annual payment:"))
  return name, annual_cost

all_data = [insurance_input() for _ in range(3)].sort(
    key=lambda name, cost: -cost)

print ("The monthly costs ordered most to least expensive are:")
print("\n".join("%s\t%s" % ii for ii in all_data))

Edit: Sigh … sorry for the necro