Drop hard dependency on mypy (#495)

As announced in 3.14.4 release notes, we will drop the hard dependency on mypy. Users of djangorestframework-stubs with mypy will need to add their own dependency on mypy, or use djangorestframework-stubs[compatible-mypy] extra.

Currently mypy remains the only supported type checker. Improvements for other type checkers may be considered in the future, pull requests welcome.

* Drop hard mypy dependency
* Transitively depend on django-stubs with [compatible-mypy] extra
* Use newer URL dependency syntax

Author: intgr

requirements.txt

@@ -6,6 +6,6 @@ djangorestframework==3.14.0
 types-pytz==2023.3.1.1
 types-requests==2.31.0.10
 types-urllib3==1.26.25.14
-git+https://github.com/typeddjango/django-stubs
-git+https://github.com/typeddjango/django-stubs#subdirectory=ext
+django-stubs[compatible-mypy] @ git+https://github.com/typeddjango/django-stubs
+django-stubs-ext @ git+https://github.com/typeddjango/django-stubs#subdirectory=ext
 -e .[compatible-mypy,coreapi,markdown]

setup.py

@@ -20,7 +20,6 @@ def find_stub_files(name: str) -> List[str]:
     readme = f.read()
 
 dependencies = [
-    "mypy>=0.991",
     "django-stubs>=4.2.5",
     "typing-extensions>=3.10.0",
     "requests>=2.0.0",
@@ -30,7 +29,7 @@ def find_stub_files(name: str) -> List[str]:
 
 # Keep compatible-mypy major.minor version pinned to what we use in CI (requirements.txt)
 extras_require = {
-    "compatible-mypy": ["mypy~=1.6.0"],
+    "compatible-mypy": ["mypy~=1.6.0", "django-stubs[compatible-mypy]"],
     "coreapi": ["coreapi>=2.0.0"],
     "markdown": ["types-Markdown>=0.1.5"],
 }