The py launcher—or just py for short—is a shortcut to all the installed versions of Python on your system. With a command-line switch, you can see at a glance all the Python interpreters you ...

python iprocess.py 4 33 2 python iprocess.py --sum 10 20 30 In the first case, the program will select and print the largest number. In the second case, it will add all the arguments together.