Barfs out with "ImportError: No module named pkg_resources"

[Julian Ospald]

TASK [geerlingguy.pip : Ensure pip_install_packages are installed.] ********************************************************************
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: ImportError: No module named pkg_resources
failed: [jenkins] (item={'name': 'setuptools'}) => {"ansible_loop_var": "item", "changed": false, "item": {"name": "setuptools"}, "msg": "Failed to import the required Python library (setuptools) on jenkins-machine's Python /usr/bin/python. Please read module documentation and install in the appropriate location"}
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: ImportError: No module named pkg_resources
failed: [jenkins] (item={'name': 'docker'}) => {"ansible_loop_var": "item", "changed": false, "item": {"name": "docker"}, "msg": "Failed to import the required Python library (setuptools) on jenkins-machine's Python /usr/bin/python. Please read module documentation and install in the appropriate location"}
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: ImportError: No module named pkg_resources
failed: [jenkins] (item={'name': 'docker-compose'}) => {"ansible_loop_var": "item", "changed": false, "item": {"name": "docker-compose"}, "msg": "Failed to import the required Python library (setuptools) on jenkins-machine's Python /usr/bin/python. Please read module documentation and install in the appropriate location"}

The file up until the error:

- hosts: "{{ setupHosts }}"
  vars_prompt:
    - name: "setupHosts"
      prompt: "Which hosts would you like to setup?"
      private: no

  gather_facts: yes

  tasks:
    - name: add universe repository for bionic
      become: yes
      apt_repository:
        repo: deb http://archive.ubuntu.com/ubuntu bionic universe
        state: present
      when: ansible_distribution_release == 'bionic'

    - name: install pip
      become: yes
      import_role:
        name: geerlingguy.pip
      vars:
        pip_package: python3-pip
        pip_install_packages:
          - name: setuptools
          - name: docker
          - name: docker-compose

[Volker Thiel]

Make sure you have the package python-setuptools installed. I had the same error and manually installing this package on Debian Buster fixed it for me.

[Chris Ng]

Are you getting those errors using python3? I was seeing something similar and used the following vars to get things working:

ansible_python_interpreter: /usr/bin/python3  
pip_package: python3-pip
pip_executable: pip3
pip_install_packages:
  - name: awscli

Please note that I installed python3-pip in a role tasked before the pip role.

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