passing arguments to python binary executable

Question

I am trying to run a python script passing arguments in the command line. The way I am doing is the following:

from sys import argv
x, y = argv

When I try to run the script:

./tst.py 23 1421 (the integers being the arguments)

I get encounter the following error:

ValueError: too many values to unpack

I am ultimately converting this script as a binary using pyinstaller and the executable would be called from any external application (for eg: Java code).

Any help would be much appreciated on this particular issue and any better method of passing argument to the binary ultimately.

Martijn Pieters · Accepted Answer · 2015-04-11 15:54:58Z

3

sys.argv includes the script name, so you have three values in the list, not two.

Take that into account when unpacking; either ignore the first element:

x, v = sys.argv[1:]

or include another target:

script, x, v = sys.argv

From the sys.argv documentation:

The list of command line arguments passed to a Python script. argv[0] is the script name (it is operating system dependent whether this is a full pathname or not).

edited Apr 11, 2015 at 15:54

answered Apr 11, 2015 at 15:31

Martijn Pieters

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