Include required version of Django for dependency management tools

[adrian-nilsson-fcc]

Description

Version 2.4.0 requires Django >= 4.2, but this is not visible to the popular dependency management tool poetry:

[project]
name = "django-prometheus-bug"
requires-python = ">=3.12"
dependencies = [
    "django (>=3.2,<4.0)",
    "django-prometheus (>=2.4.0,<3.0.0)"
]

[tool.poetry]
package-mode = false

[build-system]
requires = ["poetry-core>=2.0.0,<3.0.0"]
build-backend = "poetry.core.masonry.api"

The above project installs without conflict:

~/[...]> poetry sync                                                                                                                                                                                                                                                  
Installing dependencies from lock file

Package operations: 6 installs, 0 updates, 2 removals

  - Removing setuptools (78.1.1)
  - Removing wheel (0.45.1)
  - Installing asgiref (3.8.1)
  - Installing prometheus-client (0.22.1)
  - Installing pytz (2025.2)
  - Installing sqlparse (0.5.3)
  - Installing django (3.2.25)
  - Installing django-prometheus (2.4.0)

This results in a broken installation. Moreover, an existing Django 3.2 project could be left in a broken state after doing poetry update if it uses django-prometheus (this is how I first discovered the dependency issue).

Dependency tree:

~/[...]> poetry show --tree                                                                                                                                                                                                                                           
django 3.2.25 A high-level Python Web framework that encourages rapid development and clean, pragmatic design.
├── asgiref >=3.3.2,<4
├── pytz *
└── sqlparse >=0.2.2
django-prometheus 2.4.0 Django middlewares to monitor your application with Prometheus.io.
└── prometheus-client >=0.7

Expected behaviour

django-prometheus v.2.4.0 should not be installable alongside Django 3.2.* since it requires Django >= 4.2.

Suggested implementation

I'm not a packaging expert, but why not add a version specifier django >= 4.2 in install_requires?