topic Re: Python extensions 2.0 migration in Extensions

Python extensions 2.0 migration

Eyad — Tue, 18 Feb 2025 14:57:52 GMT

Hello everyone,

I am new to Python extensions and am currently working on a 2.0 migration. I am facing some issues and would like to identify the root cause of the problem.

My Setup:

IDE: VS Code
Local Environment: Windows with Python 3.10
Deployment Environment: Linux (Ubuntu 20.04.2) with Python 3.8

Issue:

I am mainly encountering dependency issues, such as missing modules or the following error:
ModuleNotFoundError: No module named 'pymssql._pymssql' # this was in the pytho3_fastcheck.log

In the 1.0 version, my team was including dependencies in the plugin.json file. like this

Can I include install_ requires in 2.0 or can i have requirements.txt then from the Linux i install the libs where my Ext folder will be located in the VM, and where should it be? Also, do I need to install Linux on my machine? Will Python 3.8 work with the 2.0 extension?

any direction will be helpful. Thank you!

Re: Python extensions 2.0 migration

mark_bley — Tue, 18 Feb 2025 15:22:19 GMT

The new extension package contains a setup.py file which contains this dependencies field, add them here.

% tail sample_extension/setup.py setup(name="sample_extension", version=find_version(), description="Sample_extension python EF2 extension", author="Dynatrace", packages=find_packages(), python_requires=">=3.10", include_package_data=True, install_requires=["dt-extensions-sdk"], extras_require={"dev": ["dt-extensions-sdk[cli]"]}, )

Also in case you haven't done already when building extension from windows to *nix systems follow this guide to build for cross platform https://dynatrace-extensions.github.io/dt-extensions-python-sdk/guides/building.html#native-dependencies

Re: Python extensions 2.0 migration

Eyad — Tue, 04 Mar 2025 14:42:46 GMT

any recommendations?

Re: Python extensions 2.0 migration

mark_bley — Wed, 19 Feb 2025 14:54:56 GMT

If you want to include a function from another python file you can do it like this:

% head __main__.py from dynatrace_extension import Extension, Status, StatusValue import datetime import croniter from .templates import get_mz_template

and the folder/file structure should look like this:

% tree ./ ./ ├── __init__.py ├── __main__.py └── templates.py

(adapt the paths to your needs, this is just an example and not intended to be a best practice)

Re: Python extensions 2.0 migration

Eyad — Tue, 04 Mar 2025 14:41:45 GMT

I am still getting an error message ..

my code

from .iam_dynatrace_ad_service_user_keys import iam_dynatrace_ad_service_user_keys

from .iam_dynatrace_api_rest_client import iam_dynatrace_rest_client

cannot import name 'iam_dynatrace_ad_service_user_keys' from 'iam_ad_status_check.iam_dynatrace_ad_service_user_keys' (/var/lib/dynatrace/remotepluginmodule/agent/runtime/extensions/python_venvs/custom_iam-ad-status-check_0.0.5/lib/python3.10/site-packages/iam_ad_status_check/iam_dynatrace_ad_service_user_keys.py)

Re: Python extensions 2.0 migration

mark_bley — Wed, 19 Feb 2025 18:32:37 GMT

In my example I was just importing a function.

Please review some python documentation on how to import function or classes e.g.: https://stackoverflow.com/questions/4383571/importing-files-from-different-folder

Also try a dt-sdk run <extension_name> to test the extension locally.