Merge pull request #1655 from the-mr-dave/testing/mypy-initial-setup

Add initial mypy configuration and CI integration

Author: shuds13

.github/workflows/basic.yml

@@ -62,6 +62,12 @@ jobs:
             pip install -e .
             flake8 libensemble
 
+        - name: Install mypy
+          run: pip install mypy
+
+        - name: Run mypy (limited scope)
+          run: mypy
+
         - name: Remove various tests on newer pythons
           if: matrix.python-version == 'py311' || matrix.python-version == 'py312' || matrix.python-version == 'py313' || matrix.python-version == 'py314'
           run: |

libensemble/utils/misc.py

@@ -18,8 +18,8 @@ def extract_H_ranges(Work: dict) -> str:
     else:
         # From https://stackoverflow.com/a/30336492
         ranges = []
-        for diff, group in groupby(enumerate(work_H_rows.tolist()), lambda x: x[0] - x[1]):
-            group = list(map(itemgetter(1), group))
+        for diff, group_iter in groupby(enumerate(work_H_rows.tolist()), lambda x: x[0] - x[1]):
+            group = list(map(itemgetter(1), group_iter))
             if len(group) > 1:
                 ranges.append(str(group[0]) + "-" + str(group[-1]))
             else:

pyproject.toml

@@ -258,4 +258,15 @@ inpt = "inpt"
 extend-exclude = ["*.bib", "*.xml", "docs/nitpicky"]
 
 [tool.mypy]
+# Initial, permissive mypy configuration for libensemble.
+# Allows incremental adoption. To be tightened in future releases.
+packages = ["libensemble.utils"]
+exclude = '''
+libensemble/utils/(launcher|loc_stack|runners|pydantic|output_directory)\.py
+'''
 disable_error_code = ["import-not-found", "import-untyped"]
+ignore_missing_imports = true
+follow_imports = "skip"
+check_untyped_defs = false
+disallow_untyped_defs = false
+warn_unused_ignores = false