Question

For example – I want to do something like…

python DoublePendulum.py INPUT1 INPUT2

(where INPUT1 and INPUT2 are taken as variable inputs within the DoublePendulum program).

Answer 1

$ python test.py arg1 arg2 arg3

In test.py

import sys

print 'Number of arguments:', len(sys.argv), 'arguments.'
print 'Argument List:', str(sys.argv)

output

Number of arguments: 4 arguments.
Argument List: ['test.py', 'arg1', 'arg2', 'arg3']

Python also provided modules that helps you parse command-line options and arguments.
There are the following modules in the standard library:

• The getopt module is similar to GNU getopt.
• The optparse module offers object-oriented command line option parsing, optparse was deprecated in version 2.7 of Python argparse is the replacement.