Fix formatting issues

bigquery_etl/parse_udf.py

@@ -93,7 +93,7 @@ def accumulate_dependencies(deps, raw_udfs, udf_name):
 
 
 def udf_usages_in_file(filepath):
-    """Returns a list of UDF names used in the provided SQL file."""
+    """Return a list of UDF names used in the provided SQL file."""
     with open(filepath) as f:
         text = f.read()
     sql = sqlparse.format(text, strip_comments=True)

tests/conftest.py

@@ -1,4 +1,6 @@
-import pytest
+"""PyTest configuration."""
+
 
 def pytest_configure():
+    """Generate SQL files before running tests."""
     exec(open("script/generate_sql").read())

tests/test_udfs.py

@@ -1,14 +1,15 @@
-import os, sys
+import os
+import sys
+
+from google.api_core.exceptions import BadRequest
+from google.cloud import bigquery
+import pytest
 
 # sys.path needs to be modified to enable package imports from parent
 # and sibling directories. Also see:
 # https://stackoverflow.com/questions/6323860/sibling-package-imports/23542795#23542795
 sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
-from bigquery_etl import parse_udf
-
-from google.api_core.exceptions import BadRequest
-from google.cloud import bigquery
-import pytest
+from bigquery_etl import parse_udf  # noqa: E402
 
 
 TEST_UDFS = """