Check comma conventions

Author: Cito

dbutils/steady_db.py

@@ -284,7 +284,7 @@ def _create(self):
                         except AttributeError as error:
                             raise AttributeError(
                                 "Could not determine failure exceptions"
-                                " (please set failures or creator.dbapi)."
+                                " (please set failures or creator.dbapi).",
                             ) from error
             if isinstance(self._failures, tuple):
                 self._failure = self._failures[0]

pyproject.toml

@@ -64,6 +64,7 @@ select = [
   "B",      # flake8-bugbear
   "C4",     # flake8-comprehensions
   "C90",    # McCabe cyclomatic complexity
+  "COM",    # flake8-commas
   "DTZ",    # flake8-datetimez
   "E",      # pycodestyle
   "EXE",    # flake8-executable
@@ -93,7 +94,6 @@ select = [
   "YTT",    # flake8-2020
   # "ANN",  # flake8-annotations
   # "BLE",  # flake8-blind-except
-  # "COM",  # flake8-commas
   # "D",    # pydocstyle
   # "DJ",   # flake8-django
   # "EM",   # flake8-errmsg

tests/test_pooled_pg.py

@@ -70,7 +70,7 @@ def test_create_connection():
     assert db.user is None
     assert hasattr(db, 'num_queries')
     assert db.num_queries == 0
-    pool = PooledPg(0, 0, 0, False, 3, ('set datestyle',),)
+    pool = PooledPg(0, 0, 0, False, 3, ('set datestyle',))
     assert pool._maxusage == 3
     assert pool._setsession == ('set datestyle',)
     db = pool.connection()