Enable bugbear checks

Author: timj

pyproject.toml

@@ -31,6 +31,8 @@ select = [
     "W",  # pycodestyle
     "I",  # isort
     "RUF022",  # Sort __all__
+    "C4",  # comprehensions
+    "B",  # bugbear
 ]
 extend-select = [
     "RUF100", # Warn about unused noqa

python/lsst/sconsUtils/builders.py

@@ -292,7 +292,7 @@ def ProductDir(env, product):
 
     global _productDirs
     try:
-        _productDirs
+        _productDirs  # noqa: B018
     except Exception:
         try:
             _productDirs = eupsForScons.productDir(eupsenv=eupsForScons.getEups())