chore: format code files with nox

db_dtypes/__init__.py

@@ -27,10 +27,8 @@
 import pyarrow
 import pyarrow.compute
 
-
-from db_dtypes.version import __version__
 from db_dtypes import core
-
+from db_dtypes.version import __version__
 
 date_dtype_name = "dbdate"
 time_dtype_name = "dbtime"

db_dtypes/core.py

@@ -21,7 +21,6 @@
 
 from db_dtypes import pandas_backports
 
-
 pandas_release = pandas_backports.pandas_release
 
 

db_dtypes/pandas_backports.py

@@ -29,7 +29,6 @@
 import pandas.compat.numpy.function
 import pandas.core.nanops
 
-
 pandas_release = packaging.version.parse(pandas.__version__).release
 
 # Create aliases for private methods in case they move in a future version.

noxfile.py

@@ -21,7 +21,6 @@
 import os
 import pathlib
 import re
-import re
 import shutil
 from typing import Dict, List
 import warnings

samples/snippets/pandas_date_and_time.py

@@ -17,7 +17,9 @@ def pandas_date_and_time():
     # [START bigquery_pandas_date_create]
 
     import datetime
+
     import pandas as pd
+
     import db_dtypes  # noqa import to register dtypes
 
     dates = pd.Series([datetime.date(2021, 9, 17), "2021-9-18"], dtype="dbdate")

setup.py

@@ -15,6 +15,7 @@
 import io
 import os
 import re
+
 from setuptools import setup
 
 # Package metadata.

tests/compliance/date/test_date_compliance.py

@@ -21,13 +21,12 @@
 """
 
 import pandas
-from pandas.tests.extension import base
 import pandas._testing as tm
+from pandas.tests.extension import base
 import pytest
 
 import db_dtypes
 
-
 # TODO(https://github.com/googleapis/python-db-dtypes-pandas/issues/87): Add
 # compliance tests for arithmetic operations.
 

tests/compliance/time/test_time_compliance.py

@@ -21,13 +21,12 @@
 """
 
 import pandas
-from pandas.tests.extension import base
 import pandas._testing as tm
+from pandas.tests.extension import base
 import pytest
 
 import db_dtypes
 
-
 # TODO(https://github.com/googleapis/python-db-dtypes-pandas/issues/87): Add
 # compliance tests for arithmetic operations.
 

tests/unit/test_arrow.py

@@ -23,7 +23,6 @@
 
 import db_dtypes
 
-
 SECOND_NANOS = 1_000_000_000
 MINUTE_NANOS = 60 * SECOND_NANOS
 HOUR_NANOS = 60 * MINUTE_NANOS

tests/unit/test_date.py

@@ -25,7 +25,6 @@
 import db_dtypes
 from db_dtypes import pandas_backports
 
-
 VALUE_PARSING_TEST_CASES = [
     # Min/Max values for pandas.Timestamp.
     ("1677-09-22", datetime.date(1677, 9, 22)),