Add scipy-stubs as dev dependency

https://github.com/scipy/scipy-stubs

.pre-commit-config.yaml

@@ -26,6 +26,7 @@ repos:
       - id: mypy
         exclude: build_helpers
         additional_dependencies:
+          - scipy-stubs==1.15.3.0
           - types-cachetools==6.0.0.20250525
           - types-filelock==3.2.7
           - types-requests==2.32.4.20250611

pyproject.toml

@@ -111,6 +111,7 @@ develop = [
   "pytest-xdist",
   "pytest",
   "ruff",
+  "scipy-stubs",
   "time-machine",
   "types-cachetools",
   "types-filelock",

requirements-dev.txt

@@ -24,6 +24,7 @@ time-machine==2.16.0
 nbconvert==7.16.6
 
 # mypy types
+scipy-stubs==1.15.3.0  # keep in sync with `scipy` in `requirements-hyperopt.txt`
 types-cachetools==6.0.0.20250525
 types-filelock==3.2.7
 types-requests==2.32.4.20250611