Create a simple calculator that receives command line arguments
Level: Intermediate (score: 3)
In this Bite you write a simple calculator that can perform additions (add), subtractions (sub), multiplications (mul) and divisions (div).
You will use argparse to interface with the program. You will make it work like this:
$ python calculator.py -h
usage: calculator.py [-h] [-a ADD [ADD ...]] [-s SUB [SUB ...]]
[-m MUL [MUL ...]] [-d DIV [DIV ...]]
A simple calculator
optional arguments:
-h, --help show this help message and exit
-a ADD [ADD ...], --add ADD [ADD ...]
Sums numbers
-s SUB [SUB ...], --sub SUB [SUB ...]
Subtracts numbers
-m MUL [MUL ...], --mul MUL [MUL ...]
Multiplies numbers
-d DIV [DIV ...], --div DIV [DIV ...]
Divides numbers
$ python calculator.py --add 1 2 3
6.0
$ python calculator.py --sub 10 6 2
2.0
$ python calculator.py --mul 3 3 3
27.0
$ python calculator.py --div 8 5 7
0.23
See also the TESTS tab for more info. Good luck and have fun ... argparse is a good skill to have!
If new to argparse you might want to check out Bite 56 first. For a more advanced Bite try 58.