STYLE: upgrade flake8 (#48069)

* ⬆️ UPGRADE: Autoupdate pre-commit config

* sync flake8 version

* update flake8-pyi version

* remove flake8-comprehensions (unnecessary since pyupgrade)

* bump bugbear

* GH48061 set flake8 bugbear errors (B019, B020, B023) to ignore

* GH48061 fix flake8 character length (E501) errors

Co-authored-by: MarcoGorelli <[email protected]>
Co-authored-by: Marco Gorelli <[email protected]>

Author: jmoro0408

.pre-commit-config.yaml

@@ -11,7 +11,7 @@ repos:
     -   id: absolufy-imports
         files: ^pandas/
 -   repo: https://github.com/jendrikseipp/vulture
-    rev: 'v2.4'
+    rev: 'v2.5'
     hooks:
       - id: vulture
         entry: python scripts/run_vulture.py
@@ -46,20 +46,19 @@ repos:
         exclude: ^pandas/_libs/src/(klib|headers)/
         args: [--quiet, '--extensions=c,h', '--headers=h', --recursive, '--filter=-readability/casting,-runtime/int,-build/include_subdir']
 -   repo: https://github.com/PyCQA/flake8
-    rev: 4.0.1
+    rev: 5.0.4
     hooks:
     -   id: flake8
         additional_dependencies: &flake8_dependencies
-        - flake8==4.0.1
-        - flake8-comprehensions==3.7.0
-        - flake8-bugbear==21.3.2
+        - flake8==5.0.4
+        - flake8-bugbear==22.7.1
         - pandas-dev-flaker==0.5.0
 -   repo: https://github.com/PyCQA/isort
     rev: 5.10.1
     hooks:
     -   id: isort
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v2.34.0
+    rev: v2.37.3
     hooks:
     -   id: pyupgrade
         args: [--py38-plus]
@@ -239,8 +238,8 @@ repos:
         types: [pyi]
         language: python
         additional_dependencies:
-        - flake8==4.0.1
-        - flake8-pyi==22.7.0
+        - flake8==5.0.4
+        - flake8-pyi==22.8.1
     -   id: future-annotations
         name: import annotations from __future__
         entry: 'from __future__ import annotations'

environment.yml

@@ -85,9 +85,8 @@ dependencies:
   # code checks
   - black=22.3.0
   - cpplint
-  - flake8=4.0.1
-  - flake8-bugbear=21.3.2  # used by flake8, find likely bugs
-  - flake8-comprehensions=3.7.0  # used by flake8, linting of unnecessary comprehensions
+  - flake8=5.0.4
+  - flake8-bugbear=22.7.1 # used by flake8, find likely bugs
   - isort>=5.2.1  # check that imports are in the right order
   - mypy=0.971
   - pre-commit>=2.15.0

pandas/tests/arrays/categorical/test_repr.py

@@ -319,7 +319,7 @@ def test_categorical_repr_timedelta(self):
 
         c = Categorical(idx.append(idx), categories=idx)
         exp = """[1 days, 2 days, 3 days, 4 days, 5 days, 1 days, 2 days, 3 days, 4 days, 5 days]
-Categories (5, timedelta64[ns]): [1 days, 2 days, 3 days, 4 days, 5 days]"""
+Categories (5, timedelta64[ns]): [1 days, 2 days, 3 days, 4 days, 5 days]"""  # noqa:E501
 
         assert repr(c) == exp
 
@@ -352,7 +352,7 @@ def test_categorical_repr_timedelta_ordered(self):
 
         c = Categorical(idx.append(idx), categories=idx, ordered=True)
         exp = """[1 days, 2 days, 3 days, 4 days, 5 days, 1 days, 2 days, 3 days, 4 days, 5 days]
-Categories (5, timedelta64[ns]): [1 days < 2 days < 3 days < 4 days < 5 days]"""
+Categories (5, timedelta64[ns]): [1 days < 2 days < 3 days < 4 days < 5 days]"""  # noqa:E501
 
         assert repr(c) == exp
 

pandas/tests/indexes/categorical/test_formats.py

@@ -24,7 +24,7 @@ def test_string_categorical_index_repr(self):
         expected = """CategoricalIndex(['a', 'bb', 'ccc', 'a', 'bb', 'ccc', 'a', 'bb', 'ccc', 'a',
                   'bb', 'ccc', 'a', 'bb', 'ccc', 'a', 'bb', 'ccc', 'a', 'bb',
                   'ccc', 'a', 'bb', 'ccc', 'a', 'bb', 'ccc', 'a', 'bb', 'ccc'],
-                 categories=['a', 'bb', 'ccc'], ordered=False, dtype='category')"""
+                 categories=['a', 'bb', 'ccc'], ordered=False, dtype='category')"""  # noqa:E501
 
         assert repr(idx) == expected
 
@@ -55,7 +55,7 @@ def test_string_categorical_index_repr(self):
         expected = """CategoricalIndex(['あ', 'いい', 'ううう', 'あ', 'いい', 'ううう', 'あ', 'いい', 'ううう', 'あ',
                   'いい', 'ううう', 'あ', 'いい', 'ううう', 'あ', 'いい', 'ううう', 'あ', 'いい',
                   'ううう', 'あ', 'いい', 'ううう', 'あ', 'いい', 'ううう', 'あ', 'いい', 'ううう'],
-                 categories=['あ', 'いい', 'ううう'], ordered=False, dtype='category')"""
+                 categories=['あ', 'いい', 'ううう'], ordered=False, dtype='category')"""  # noqa:E501
 
         assert repr(idx) == expected
 
@@ -90,7 +90,7 @@ def test_string_categorical_index_repr(self):
                   'ううう', 'あ', 'いい', 'ううう', 'あ', 'いい', 'ううう',
                   'あ', 'いい', 'ううう', 'あ', 'いい', 'ううう', 'あ', 'いい',
                   'ううう', 'あ', 'いい', 'ううう', 'あ', 'いい', 'ううう'],
-                 categories=['あ', 'いい', 'ううう'], ordered=False, dtype='category')"""
+                 categories=['あ', 'いい', 'ううう'], ordered=False, dtype='category')"""  # noqa:E501
 
             assert repr(idx) == expected
 

pandas/tests/indexes/multi/test_formats.py

@@ -184,7 +184,7 @@ def test_tuple_width(self, wide_multi_index):
         mi = wide_multi_index
         result = mi[:1].__repr__()
         expected = """MultiIndex([('a', 9, '2000-01-01 00:00:00', '2000-01-01 00:00:00', ...)],
-           names=['a', 'b', 'dti_1', 'dti_2', 'dti_3'])"""
+           names=['a', 'b', 'dti_1', 'dti_2', 'dti_3'])"""  # noqa:E501
         assert result == expected
 
         result = mi[:10].__repr__()

requirements-dev.txt

@@ -64,9 +64,8 @@ flask
 asv
 black==22.3.0
 cpplint
-flake8==4.0.1
-flake8-bugbear==21.3.2
-flake8-comprehensions==3.7.0
+flake8==5.0.4
+flake8-bugbear==22.7.1
 isort>=5.2.1
 mypy==0.971
 pre-commit>=2.15.0

setup.cfg

@@ -103,6 +103,12 @@ ignore =
     # tests use comparisons but not their returned value
     B015,
     # false positives
+    B019,
+    # Use of functools.lru_cache or functools.cache on methods can lead to memory leaks.
+    B020
+    # Loop control variable overrides iterable it iterates
+    B023
+    # Functions defined inside a loop must not use variables redefined in the loop
     B301,
     # single-letter variables
     PDF023,