PdmV HTTP Client

This project provides an HTTP client based on requests to handle authenticated requests to CERN internal applications. Furthermore, it includes some clients to ease the interaction with the APIs of PdmV applications. This version is a refactor of the old McM Scripts project, and it is published at PyPI to be public available.

How to use this package

Prerequisite

Create an isolated virtual environment using a Python version >= 3.9 like, for instance:

python3.9 -m venv venv && source ./venv/bin/activate

Development version

If you want to set up a development environment to contribute to this project:

Install uv and the required dependencies.

pip install uv

Set the current venv to use with uv:

export UV_PROJECT_ENVIRONMENT="${VIRTUAL_ENV}"

Install the packages via: uv sync

Run the test suite via: uv run pytest -s -vv

[!IMPORTANT] Make sure your execution environment has a valid Kerberos ticket to consume CERN services!

Build package

If you just want to use this package in your own project, install it via:

pip install pdmv-http-client

Make sure to remove the sys.path.append(...) statement, if you have them in your script, to avoid overloading old versions from CERN AFS.

Examples

At the examples/ folder, you will find some scripts explaining how to use the clients and the HTTP client.

Priority change

• If you want to use priority-changing scripts or do anything else related to cmsweb, you'll have to use voms-proxy:
  • voms-proxy-init -voms cms
  • export X509_USER_PROXY=$(voms-proxy-info --path)