CLN: Remove trailing commas
Working on: CLN remove unnecessary trailing commas to get ready for new version of black #35925.
Updated the following files: 
pandas/tests/series/methods/test_interpolate.py
pandas/tests/series/methods/test_unstack.py
pandas/tests/series/test_cumulative.py
pandas/tests/test_algos.py


- [ ] closes #xxxx
- [ ] tests added / passed
- [ ] passes `black pandas`
- [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry

Hello @cjlynch278! Thanks for opening this PR. We checked the lines you've touched for [PEP 8](https://www.python.org/dev/peps/pep-0008) issues, and found:

* In the file [`pandas/tests/series/methods/test_interpolate.py`](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py):

> [Line 105:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L105): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (154 > 88 characters)
> [Line 132:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L132): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (154 > 88 characters)
> [Line 140:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L140): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (139 > 88 characters)
> [Line 151:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L151): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (154 > 88 characters)
> [Line 163:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L163): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (154 > 88 characters)
> [Line 173:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L173): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (92 > 88 characters)
> [Line 213:38](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L213): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 213:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L213): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (122 > 88 characters)
> [Line 403:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L403): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (269 > 88 characters)
> [Line 502:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L502): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (97 > 88 characters)
> [Line 504:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L504): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (104 > 88 characters)
> [Line 615:35](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L615): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 615:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L615): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (141 > 88 characters)
> [Line 661:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_interpolate.py#L661): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (113 > 88 characters)

* In the file [`pandas/tests/series/methods/test_unstack.py`](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_unstack.py):

> [Line 10:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_unstack.py#L10): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (108 > 88 characters)
> [Line 15:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_unstack.py#L15): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (121 > 88 characters)
> [Line 22:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_unstack.py#L22): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (141 > 88 characters)
> [Line 24:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_unstack.py#L24): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (116 > 88 characters)
> [Line 38:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_unstack.py#L38): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (123 > 88 characters)
> [Line 40:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_unstack.py#L40): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (104 > 88 characters)
> [Line 54:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_unstack.py#L54): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (187 > 88 characters)
> [Line 73:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_unstack.py#L73): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (106 > 88 characters)
> [Line 74:5](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_unstack.py#L74): [E123](https://duckduckgo.com/?q=pep8%20E123) closing bracket does not match indentation of opening bracket's line
> [Line 102:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/methods/test_unstack.py#L102): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (159 > 88 characters)

* In the file [`pandas/tests/series/test_cumulative.py`](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/test_cumulative.py):

> [Line 41:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/test_cumulative.py#L41): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (118 > 88 characters)
> [Line 51:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/test_cumulative.py#L51): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (118 > 88 characters)
> [Line 145:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/series/test_cumulative.py#L145): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (128 > 88 characters)

* In the file [`pandas/tests/test_algos.py`](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py):

> [Line 15:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L15): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (122 > 88 characters)
> [Line 19:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L19): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (106 > 88 characters)
> [Line 264:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L264): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (152 > 88 characters)
> [Line 265:10](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L265): [E202](https://duckduckgo.com/?q=pep8%20E202) whitespace before ')'
> [Line 282:9](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L282): [E121](https://duckduckgo.com/?q=pep8%20E121) continuation line under-indented for hanging indent
> [Line 282:10](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L282): [E202](https://duckduckgo.com/?q=pep8%20E202) whitespace before ')'
> [Line 332:10](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L332): [E202](https://duckduckgo.com/?q=pep8%20E202) whitespace before ')'
> [Line 354:10](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L354): [E202](https://duckduckgo.com/?q=pep8%20E202) whitespace before ')'
> [Line 428:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L428): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (140 > 88 characters)
> [Line 428:139](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L428): [E202](https://duckduckgo.com/?q=pep8%20E202) whitespace before ')'
> [Line 430:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L430): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (134 > 88 characters)
> [Line 430:100](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L430): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 430:132](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L430): [E202](https://duckduckgo.com/?q=pep8%20E202) whitespace before ']'
> [Line 532:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L532): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (121 > 88 characters)
> [Line 533:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L533): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (115 > 88 characters)
> [Line 536:63](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L536): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 536:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L536): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (112 > 88 characters)
> [Line 537:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L537): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (104 > 88 characters)
> [Line 542:62](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L542): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 542:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L542): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (102 > 88 characters)
> [Line 551:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L551): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (99 > 88 characters)
> [Line 574:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L574): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (112 > 88 characters)
> [Line 574:111](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L574): [E202](https://duckduckgo.com/?q=pep8%20E202) whitespace before ']'
> [Line 590:45](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L590): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 590:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L590): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (147 > 88 characters)
> [Line 590:145](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L590): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 949:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L949): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (144 > 88 characters)
> [Line 953:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L953): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (107 > 88 characters)
> [Line 979:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L979): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (105 > 88 characters)
> [Line 986:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L986): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (93 > 88 characters)
> [Line 989:27](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L989): [E201](https://duckduckgo.com/?q=pep8%20E201) whitespace after '('
> [Line 989:62](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L989): [E201](https://duckduckgo.com/?q=pep8%20E201) whitespace after '('
> [Line 989:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L989): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (121 > 88 characters)
> [Line 993:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L993): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (130 > 88 characters)
> [Line 1000:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1000): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (119 > 88 characters)
> [Line 1006:32](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1006): [E201](https://duckduckgo.com/?q=pep8%20E201) whitespace after '('
> [Line 1006:86](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1006): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 1006:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1006): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (122 > 88 characters)
> [Line 1007:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1007): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (123 > 88 characters)
> [Line 1009:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1009): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (128 > 88 characters)
> [Line 1010:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1010): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (140 > 88 characters)
> [Line 1011:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1011): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (117 > 88 characters)
> [Line 1012:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1012): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (118 > 88 characters)
> [Line 1014:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1014): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (123 > 88 characters)
> [Line 1099:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1099): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (103 > 88 characters)
> [Line 1148:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1148): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (137 > 88 characters)
> [Line 1148:104](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1148): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 1148:117](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1148): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 1149:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1149): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (107 > 88 characters)
> [Line 1151:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1151): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (240 > 88 characters)
> [Line 1172:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1172): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (95 > 88 characters)
> [Line 1183:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1183): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (96 > 88 characters)
> [Line 1204:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1204): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (113 > 88 characters)
> [Line 1205:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1205): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 1205:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1205): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (163 > 88 characters)
> [Line 1396:66](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1396): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 1396:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1396): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (287 > 88 characters)
> [Line 1396:232](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1396): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 1434:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1434): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (168 > 88 characters)
> [Line 1467:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1467): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (165 > 88 characters)
> [Line 1499:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1499): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (124 > 88 characters)
> [Line 1569:38](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1569): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','
> [Line 1569:89](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1569): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (129 > 88 characters)
> [Line 1775:19](https://github.com/pandas-dev/pandas/blob/767884b7d87e82442e28741d95ebfb8335217ce4/pandas/tests/test_algos.py#L1775): [E231](https://duckduckgo.com/?q=pep8%20E231) missing whitespace after ','

 @cjlynch278 It looks like there may have been accidental changes to logic (there are some test failures). You'll also want to run black to fix linting. Hi @cjlynch278 

Workflow here should be:

- update black to new version
- run black on files
- for the lines that have changed, try removing trailing commas
- run black on files again
- downgrade black to current version, check nothing changes Hi @cjlynch278 - is this still active?