Command line applications in Python using Argparse

• Understanding positional arguments

ping google.com
cp 1.txt 2.txt

• Introduction optional arguments

ping -c 4 google.com
cp -r src/ test/

• Refer Here for the basic example

• Exercise: Create a python program to accept prinicipal amount, rate of intrest and time period in years and display the simple and compount intrest to the user

interestcalculator.py -p 10000 -r 10 -t 3

• Refer Here for the changeset

• Refer Here for the official docs of argparse