Pin Mypy version used by PyPy for tests

Delgan · Delgan · commit b625815e20ce · 2026-04-05T17:44:35.000+02:00
Latest Mypy versions are incompatible with PyPy: - python/mypy#20329 - python/mypy#20384
diff --git a/pyproject.toml b/pyproject.toml
@@ -68,6 +68,7 @@ dev = [
   "mypy==v0.971 ; python_version>='3.6' and python_version<'3.7'",
   "mypy==v1.4.1 ; python_version>='3.7' and python_version<'3.8'",
   "mypy==v1.14.1 ; python_version>='3.8' and  python_version<'3.9'",
+  "mypy==v1.18.2 ; platform_python_implementation == 'PyPy'",
   "mypy==v1.18.2 ; python_version>='3.9'",
   # Docs.
   "Sphinx==8.2.1 ; python_version>='3.11'",
