Issue 24071
![image](https://user-images.githubusercontent.com/30026355/49678501-b114e900-fa52-11e8-8bba-e45e9f900da4.png)

Hi I tried my best, but there is still 4 error unfixed. 

Hello @giantpanpan! Thanks for updating the PR.

 - There are no PEP8 issues in the file [`pandas/core/base.py`](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/base.py) !

 - In the file [`pandas/core/frame.py`](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/frame.py), following                are the PEP8 issues :
> [Line 7063:80](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/frame.py#L7063): [E501](https://duckduckgo.com/?q=pep8%20E501) line too long (80 > 79 characters)


 - There are no PEP8 issues in the file [`pandas/core/generic.py`](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/generic.py) !

 - There are no PEP8 issues in the file [`pandas/core/groupby/generic.py`](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/groupby/generic.py) !

 - In the file [`pandas/core/groupby/groupby.py`](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/groupby/groupby.py), following                are the PEP8 issues :
> [Line 1315:12](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/groupby/groupby.py#L1315): [W291](https://duckduckgo.com/?q=pep8%20W291) trailing whitespace
> [Line 1326:26](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/groupby/groupby.py#L1326): [E225](https://duckduckgo.com/?q=pep8%20E225) missing whitespace around operator
> [Line 1329:25](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/groupby/groupby.py#L1329): [E225](https://duckduckgo.com/?q=pep8%20E225) missing whitespace around operator


 - There are no PEP8 issues in the file [`pandas/core/groupby/grouper.py`](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/groupby/grouper.py) !

 - There are no PEP8 issues in the file [`pandas/core/groupby/ops.py`](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/groupby/ops.py) !

 - There are no PEP8 issues in the file [`pandas/core/series.py`](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/series.py) !

 - There are no PEP8 issues in the file [`pandas/core/window.py`](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/core/window.py) !

 - There are no PEP8 issues in the file [`pandas/plotting/_core.py`](https://github.com/giantpanpan/pandas/blob/c671293f1b630b37228142cec4d653197ae45da6/pandas/plotting/_core.py) !



##### Comment last updated on December 08, 2018 at 00:15 Hours UTC