To write a python code able to read variables or inputs from the command line you only have to use sys.argv. Let's see a couple of examples.
You can find the code here.
File called example_v1.py:
import sys def main(): print sys.argv if (__name__ == "__main__"): main();
Then you go to the folder where you have it and run this comman in the comman line:
Let's try this:
python example_v1.py hi hola ciao
Basically the comand sys.argv is giving us a list of the commandline arguments received.
Now I am going to create a program that is going to say hi and the name that you introduce after file name in the commandline. I called this script example_v2.py:
So now we can write in the terminal:
import sys def main(): print 'Hi ' + sys.argv + '!' if (__name__ == "__main__"): main();
python example_v2.py Eduard
This is the result:
- This tutorial is largely inspired in https://www.youtube.com/watch?v=DCxYAYzTWOI&t=677s.
- To see sys.argv: http://www.pythonforbeginners.com/argv/more-fun-with-sys-argv