Remove isort dep
State: closed

#LondonPythonSprints

  - [x] closes #26661
  - [x] tests added / passed
 - [x] passes git diff upstream/master -u -- "*.py" | flake8 --diff

cc @datapythonista 

Labels:
name: CI
description: Continuous Integration
name: Dependencies
description: Required and optional dependencies

Comments:
closed and re-opened the PR since Travis doesn't seem to run on draft PRs
# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=h1) Report
> Merging [#26732](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/cf25c5cd3ab1f647f780167df622c74b737fa8f5?src=pr&el=desc) will **decrease** coverage by `<.01%`.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/26732/graphs/tree.svg?width=650&token=eZ4WkYLtcO&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #26732      +/-   ##
==========================================
- Coverage   91.78%   91.77%   -0.01%     
==========================================
  Files         174      174              
  Lines       50703    50703              
==========================================
- Hits        46538    46534       -4     
- Misses       4165     4169       +4
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.37% <ø> (ø)` | :arrow_up: |
| #single | `41.81% <ø> (-0.09%)` | :arrow_down: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/io/gbq.py](https://codecov.io/gh/pandas-dev/pandas/pull/26732/diff?src=pr&el=tree#diff-cGFuZGFzL2lvL2dicS5weQ==) | `78.94% <0%> (-10.53%)` | :arrow_down: |
| [pandas/core/frame.py](https://codecov.io/gh/pandas-dev/pandas/pull/26732/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvZnJhbWUucHk=) | `96.88% <0%> (-0.12%)` | :arrow_down: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=footer). Last update [cf25c5c...e518346](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).

# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=h1) Report
> Merging [#26732](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/cf25c5cd3ab1f647f780167df622c74b737fa8f5?src=pr&el=desc) will **decrease** coverage by `<.01%`.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/26732/graphs/tree.svg?width=650&token=eZ4WkYLtcO&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #26732      +/-   ##
==========================================
- Coverage   91.78%   91.77%   -0.01%     
==========================================
  Files         174      174              
  Lines       50703    50703              
==========================================
- Hits        46538    46534       -4     
- Misses       4165     4169       +4
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.37% <ø> (ø)` | :arrow_up: |
| #single | `41.81% <ø> (-0.09%)` | :arrow_down: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/io/gbq.py](https://codecov.io/gh/pandas-dev/pandas/pull/26732/diff?src=pr&el=tree#diff-cGFuZGFzL2lvL2dicS5weQ==) | `78.94% <0%> (-10.53%)` | :arrow_down: |
| [pandas/core/frame.py](https://codecov.io/gh/pandas-dev/pandas/pull/26732/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvZnJhbWUucHk=) | `96.88% <0%> (-0.12%)` | :arrow_down: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=footer). Last update [cf25c5c...1f52b34](https://codecov.io/gh/pandas-dev/pandas/pull/26732?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).

so we don't actually need isort in *any* of the ci/* .yml files, only in environment.yml, can you remove to all.
yep sorry added the ones I missed thanks @jreback 
thanks !
hmm one more:
```ci/deps/travis-36-doc.yaml:  - isort```

aah! https://github.com/pandas-dev/pandas/pull/26741