gaussdb-django 5.2.1: License Compliance, Documentation Improvements & Minor Release

[pangpang20]

Description

This is a minor release focused on license compliance, documentation accuracy, and usability improvements for the 5.2 (Django 5.2-compatible) branch.

Key highlights:

• Complete BSD-3-Clause attribution and copyright headers added across all Django-derived source files
• Updated top-level LICENSE with explicit Django attribution notice
• Minor documentation and example fixes (Wagtail setup guide, driver script, README)
• Version bump to 5.2.1

No functional changes to the database backend itself.

Changes Made

• Added full BSD-3-Clause attribution block for Django-derived code to the top-level LICENSE file
• Added proper license/copyright headers to every module in gaussdb_django/ (including newly added expressions.py)
• Updated pyproject.toml:
  • Bumped version from 5.2.0 → 5.2.1
  • Updated Django classifier to Framework :: Django :: 5.2
• Refactored Wagtail example setup guide (example/wagtail_README.md):
  • Changed virtual environment path from /opt/django_work/... to user-home ~/django_work/... for better portability
  • Fixed repository reference in driver installation script
• Minor fix in install_gaussdb_driver.sh for openEuler/HCE detection
• Merged latest changes from the 5.2.0 branch

Testing

• All unit tests pass with Django 5.2.x and GaussDB
• Package builds and installs cleanly via pip
• Verified wheel metadata and LICENSE file inclusion on PyPI test instance
• Manual verification of Wagtail example project setup using the updated guide succeeded
• Confirmed runtime behavior unchanged against GaussDB

Additional Notes

• This release fully satisfies Django’s BSD-3-Clause license requirements for derivative works.
• Users on the Django 5.2 series can upgrade safely — no breaking changes or migration steps required.
• The updated package is now available on PyPI as gaussdb-django==5.2.1.