CLN: better config for ruff

pyproject.toml

@@ -18,6 +18,8 @@ filterwarnings = [
 # Enable Pyflakes `E` and `F` codes by default.
 select = ["E", "F"]
 ignore = []
+#select = ["ALL"]
+#ignore = ["ANN", "Q", "D100", "D104"]
 
 # Allow autofix for all enabled rules (when `--fix`) is provided.
 # fixable = ["A", "B", "C", "D", "E", "F", "..."]
@@ -34,6 +36,15 @@ exclude = [
     "dist",
     "experiments",
 ]
-per-file-ignores = {}
 
-line-length = 120
+line-length = 120
+target-version = "py38"
+
+[tool.ruff.per-file-ignores]
+"*\\tests\\test_*" = [
+    "S101",   # allow using assert in test functions
+    "D103"    # do not require docstrings for test functions
+]
+
+[tool.ruff.pydocstyle]
+convention = "numpy"