I am working in Linux using Ansible. I am trying to run a script from a playbook, but I need to pass the script a few arguments: a string and 2 numbers. The first number is the number of times I need to retry to run the script, the second number variable is the retry attempt (which comes from a implement retry counter).
cat playbook.yml
---
- name: Increment variable
ansible.builtin.set_fact:
attempt_number: "{{ attempt_number | d(0) | int + 1 }}"
- name: Running Script
command: "{{ my_dir }}/script.py {{ string }} {{ max_retries }} {{ attempt_number | int }}"
The python script looks like this: cat script.py
var1=sys.argv[0]
var2=sys.argv[1]
var3=sys.argv[2]
print "String %s" % var1
print "Num1 %d" % var2
print "Num2 %d" % var3
First I am just trying to check If the variable are being passed to the python script but I am getting this error:
" File "", line 6, in ", "TypeError: %d format: a number is required, not str"]
What am I doing wrong? How can I change this, so my python script receive all the 3 parameters?
Your issue is because command line args in sys.argv are strings. You need to cast them to an int before you can use them (int(sys.argv[0]).
Would also recommend using Python3 instead of Python2. Python2 is deprecated and should not be used for any purposes.
As Python2 is a requirement for your task:
var1=sys.argv[0]
var2=int(sys.argv[1])
var3=int(sys.argv[2])
print "String %s" % var1
print "Num1 %d" % var2
print "Num2 %d" % var3
You may want to consider looking at importing from the __future__ module if you are on Python 2.6+. This will allow you to use the print function instead of the keyword. See this Stack Overflow thread for more info.
Python3 would allow you to use f strings for printing:
foo = sys.argv[0]
bar = sys.argv[1]
print(f"First arg is {foo}")
print(f"Second arg is {bar}")