[pre-commit.ci] pre-commit autoupdate (#1150)

* [pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/psf/black: 22.6.0 → 22.8.0](psf/black@22.6.0...22.8.0)
- [github.com/PyCQA/flake8: 4.0.1 → 5.0.4](PyCQA/flake8@4.0.1...5.0.4)

* style: fix ci linting errors

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Jeremy Goh <[email protected]>

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -9,7 +9,7 @@ repos:
   - id: check-yaml
   - id: check-added-large-files
 - repo: https://github.com/psf/black
-  rev: 22.6.0
+  rev: 22.8.0
   hooks:
   - id: black
     args: [--config, pyproject.toml]
@@ -24,7 +24,7 @@ repos:
   - id: darglint
     args: [-v 2]  # this config makes the error messages a bit less cryptic.
 - repo: https://github.com/PyCQA/flake8
-  rev: 4.0.1
+  rev: 5.0.4
   hooks:
     - id: flake8
       args: [--exclude, nbconvert_config.py]

janitor/functions/expand_column.py

@@ -73,7 +73,7 @@ def expand_column(
         the original dataframe (`concat=True`), or to return it standalone
         (`concat=False`).
     :returns: A pandas DataFrame with an expanded column.
-    """
+    """  # noqa: E501
     expanded_df = df[column_name].str.get_dummies(sep=sep)
     if concat:
         df = df.join(expanded_df)

tests/functions/test_count_cumulative_unique.py

@@ -5,8 +5,8 @@
 
 @pytest.mark.functions
 def test_column_name_not_exists(dataframe):
-    """Checks that an error is raised if the column to be counted does not exist
-    in df.
+    """Checks that an error is raised if the column to be counted does not
+    exist in df.
     """
     with pytest.raises(
         ValueError,
@@ -21,8 +21,8 @@ def test_column_name_not_exists(dataframe):
 @pytest.mark.functions
 @pytest.mark.parametrize("case_sensitive", [True, False])
 def test_original_column_values_not_altered(dataframe, case_sensitive):
-    """Checks that the column to be counted is not altered by the case-switching
-    logic implemented by `count_cumulative_unique`.
+    """Checks that the column to be counted is not altered by the case-
+    switching logic implemented by `count_cumulative_unique`.
     """
     before = np.array(["a", "b", "c", "A", "B", "C", "a", "b", "c"])
     dataframe["ccu"] = before