[ansible-project] passing arguments to python script

[Prady A]

Hi all

I am trying to pass the ansible hostnames as an array list to python script but could not figure out where the extra characters are coming from. I am  passing with ansible_play_hosts_all variable. 

In my host file there are 2 hoosts 1ld501 and 1ld994. but it is passing some unexpected character marked in red. 

Playbook:

---

- name: Execute writetoexcel python

  script: ./roles/writetoexcel.py {{ ansible_play_hosts_all }}

  args:

    executable: python3

  delegate_to: localhost

 

Output:

<localhost> EXEC /bin/sh -c ' python3 /root/.ansible/tmp/ansible-tmp-1687354259.71-24015-237464957552077/writetoexcel.py [u'"'"'1ld501'"'"', u'"'"'1ld994'"'"'] && sleep 0'

 

changed: [1ld501 -> localhost] => {

    "changed": true,

    "rc": 0,

    "stderr": "",

    "stderr_lines": [],

    "stdout": "[['[u1ld501,', 'u1ld994]']]\nData written to Excel successfully!\n",

    "stdout_lines": [

        "[['[u1ld501,', 'u1ld994]']]",

        "Data written to Excel successfully!"

    ]

}

 

Tried with Ansible_hostname no extra characters are there. It is as expected. Please suggest.

Playbook:

 ---

- name: Execute writetoexcel python

  script: ./roles/writetoexcel.py {{ ansible_hostname }}

  args:

    executable: python3

  delegate_to: localhost

 

Output:

<localhost> EXEC /bin/sh -c ' python3 /root/.ansible/tmp/ansible-tmp-1687354332.97-25377-185430066289739/writetoexcel.py 1ld994 && sleep 0'

<localhost> EXEC /bin/sh -c 'rm -f -r /root/.ansible/tmp/ansible-tmp-1687354332.95-25376-35834468227973/ > /dev/null 2>&1 && sleep 0'

changed: [jp1ld501 -> localhost] => {

    "changed": true,

    "rc": 0,

    "stderr": "",

    "stderr_lines": [],

    "stdout": "[['1ld994']]\nData written to Excel successfully!\n",

    "stdout_lines": [

        "[['1ld994']]",

        "Data written to Excel successfully!"

    ]

}

Regards

PD

[Dick Visser]

ansible_play_hosts_all is a list, which is what you say that you want, so all should be fine.

Unless your script does not really expect a list, which I think is what is happening.

If that is the case, either adopt your script to handle a list.

Or, turn the list into string, separated by spaces:

{{ ansible_play_hosts_all | join(" ") }}

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[Brian Coca]

The difference between a 'python list' ( [item, item2] ) and a 'shell
list' `item item2`, as @Dick Visser shows a simple join can translate
one to the other.

--
----------
Brian Coca

[Prady A]

Thank you both for your kind help.

my python script expects a list. I am expecting something like  below list

data= [["1ld501"], ["1ld994"]]

This is working for me when I hardcoded inside python script. I am expecting similar list from ansible script.

with the above join command all the hostname concatenates to one string which I am not anticipating. Kindly help. 

Regards

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[Prady A]

Hi again. Sorry if I am spamming.

I tried with below 2 option it is passing the argument as expected. I changed from double quotes to single quote now it is working.

{{ ansible_play_hosts_all | join('  ') }}

{{ groups['all'] | join(' ') }}

Thank you so much again