WIP: isort init files
#LondonPythonSprints

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


Hello @alimcmaster1! Thanks for updating this PR. We checked the lines you've touched for [PEP 8](https://www.python.org/dev/peps/pep-0008) issues, and found:

































There are currently no PEP 8 issues detected in this Pull Request. Cheers! :beers: 

##### Comment last updated at 2019-06-08 11:14:01 UTC @alimcmaster1 can you please rebase? I think there was something wrong in master that was causing the CI to be red.

Also, do you mind editing the description with info about the changes not directly specified in the ticket. Was it required for the issue to fix the sorts in the files you removed from `setup.cfg`, or are they unrelated to the changes in the dependencies? # [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26671?src=pr&el=h1) Report
> Merging [#26671](https://codecov.io/gh/pandas-dev/pandas/pull/26671?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 `100%`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/26671/graphs/tree.svg?width=650&token=eZ4WkYLtcO&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/26671?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #26671      +/-   ##
==========================================
- Coverage   91.78%   91.77%   -0.01%     
==========================================
  Files         174      174              
  Lines       50703    50712       +9     
==========================================
+ Hits        46538    46543       +5     
- Misses       4165     4169       +4
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.37% <100%> (ø)` | :arrow_up: |
| #single | `41.82% <100%> (-0.08%)` | :arrow_down: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/26671?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/\_libs/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL19saWJzL19faW5pdF9fLnB5) | `100% <ø> (ø)` | :arrow_up: |
| [pandas/\_libs/tslibs/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL19saWJzL3RzbGlicy9fX2luaXRfXy5weQ==) | `100% <100%> (ø)` | :arrow_up: |
| [pandas/compat/numpy/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2NvbXBhdC9udW1weS9fX2luaXRfXy5weQ==) | `93.1% <100%> (ø)` | :arrow_up: |
| [pandas/api/extensions/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2FwaS9leHRlbnNpb25zL19faW5pdF9fLnB5) | `100% <100%> (ø)` | :arrow_up: |
| [pandas/core/internals/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvaW50ZXJuYWxzL19faW5pdF9fLnB5) | `100% <100%> (ø)` | :arrow_up: |
| [pandas/core/arrays/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvYXJyYXlzL19faW5pdF9fLnB5) | `100% <100%> (ø)` | :arrow_up: |
| [pandas/api/types/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2FwaS90eXBlcy9fX2luaXRfXy5weQ==) | `100% <100%> (ø)` | :arrow_up: |
| [pandas/io/clipboard/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2lvL2NsaXBib2FyZC9fX2luaXRfXy5weQ==) | `54.34% <100%> (ø)` | :arrow_up: |
| [pandas/io/excel/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2lvL2V4Y2VsL19faW5pdF9fLnB5) | `100% <100%> (ø)` | :arrow_up: |
| [pandas/io/gbq.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2lvL2dicS5weQ==) | `78.94% <0%> (-10.53%)` | :arrow_down: |
| ... and [1 more](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree-more) | |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26671?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/26671?src=pr&el=footer). Last update [cf25c5c...9a3dcd8](https://codecov.io/gh/pandas-dev/pandas/pull/26671?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/26671?src=pr&el=h1) Report
> Merging [#26671](https://codecov.io/gh/pandas-dev/pandas/pull/26671?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/cf25c5cd3ab1f647f780167df622c74b737fa8f5?src=pr&el=desc) will **decrease** coverage by `49.99%`.
> The diff coverage is `100%`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/26671/graphs/tree.svg?width=650&token=eZ4WkYLtcO&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/26671?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #26671      +/-   ##
==========================================
- Coverage   91.78%   41.79%     -50%     
==========================================
  Files         174      174              
  Lines       50703    50672      -31     
==========================================
- Hits        46538    21177   -25361     
- Misses       4165    29495   +25330
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `?` | |
| #single | `41.79% <100%> (-0.11%)` | :arrow_down: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/26671?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/\_libs/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL19saWJzL19faW5pdF9fLnB5) | `100% <ø> (ø)` | :arrow_up: |
| [pandas/\_libs/tslibs/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL19saWJzL3RzbGlicy9fX2luaXRfXy5weQ==) | `100% <100%> (ø)` | :arrow_up: |
| [pandas/compat/numpy/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2NvbXBhdC9udW1weS9fX2luaXRfXy5weQ==) | `79.31% <100%> (-13.8%)` | :arrow_down: |
| [pandas/api/extensions/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2FwaS9leHRlbnNpb25zL19faW5pdF9fLnB5) | `100% <100%> (ø)` | :arrow_up: |
| [pandas/core/internals/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvaW50ZXJuYWxzL19faW5pdF9fLnB5) | `100% <100%> (ø)` | :arrow_up: |
| [pandas/core/arrays/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvYXJyYXlzL19faW5pdF9fLnB5) | `100% <100%> (ø)` | :arrow_up: |
| [pandas/api/types/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2FwaS90eXBlcy9fX2luaXRfXy5weQ==) | `100% <100%> (ø)` | :arrow_up: |
| [pandas/io/clipboard/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2lvL2NsaXBib2FyZC9fX2luaXRfXy5weQ==) | `54.34% <100%> (ø)` | :arrow_up: |
| [pandas/io/excel/\_\_init\_\_.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2lvL2V4Y2VsL19faW5pdF9fLnB5) | `100% <100%> (ø)` | :arrow_up: |
| [pandas/io/formats/latex.py](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree#diff-cGFuZGFzL2lvL2Zvcm1hdHMvbGF0ZXgucHk=) | `0% <0%> (-100%)` | :arrow_down: |
| ... and [138 more](https://codecov.io/gh/pandas-dev/pandas/pull/26671/diff?src=pr&el=tree-more) | |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26671?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/26671?src=pr&el=footer). Last update [cf25c5c...9a3dcd8](https://codecov.io/gh/pandas-dev/pandas/pull/26671?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
 @datapythonista - ill split this PR up I was removing the `isort` dependency and isorting some files and - the two are independent - see here for new PR: https://github.com/pandas-dev/pandas/pull/26732 