Troubleshoot Junos PyEZ (junos-eznc) Install Errors for Ansible Modules

Problem

Cause

Many modules in the juniper.device collection use the Junos PyEZ Python library to perform operations on Junos devices. Ansible generates this error if the library is not installed or if Ansible can’t locate the library. Ansible might fail to locate the library, for example, if you install Ansible in a virtual environment or under a Python installation in a non-standard system location and Ansible is searching for the library in a different location like the default system location.

Solution

Install Junos PyEZ on the Ansible control node and update any necessary environment variables. See https://github.com/Juniper/py-junos-eznc#installation for more information.

If you run Ansible using a Python installation in a virtual environment or a non-standard system location, you must:

• Install Junos PyEZ under the desired Python installation (in the virtual environment or non-standard system location, as appropriate).

• Specify the path to the Python interpreter—for example, set the interpreter_python variable in the Ansible configuration file or define the ansible_python_interpreter variable for the appropriate devices in the Ansible inventory file.

  For more information, see Interpreter Discovery in the official Ansible documentation.

To verify that Junos PyEZ is successfully installed on the control node, launch the Python interactive shell using the same Python installation that you use for Ansible operations. Then import the jnpr.junos package.

If you successfully import the jnpr.junos package, then Junos PyEZ is installed on the Ansible control node. If you still see the same error message when you execute the Ansible module, make sure you have specified the correct location for the Python interpreter in your Ansible environment.

Note:

You can verify the Python installation that Ansible uses by executing your Ansible playbook with the -vvv option and reviewing the log messages.