Question: I am using Spyder 2.3.1 and python(x, y).

In the preferences of Spyder you can activate "Style analysis".
This is quite nice, but I want to increase the max. tolerable line length. 
The standard setting for PEP8 is 79 characters.
This can be changed through a setup.cfg with the content:

```
[pep8]
max-line-length = 99

```

This can be read here: <http://pep8.readthedocs.org/en/latest/intro.html#related-tools>

*Where do I put a setup.cfg so Spyder/PEP8 will recognize my new limit?*
Or is there an other way to set this limit or to ignore E501 (line to long)?
Just setting "Show vertical line after 99 characters" in Spyder does not help.

Answer: 
The tox.ini with a pep8 section or a setup.cfg at the project level should do.

<http://pep8.readthedocs.org/en/latest/intro.html#configuration>
using the Spyder 4.0.0.dev0 went to my ~/.config/spyder.ini, ensured that my spyder application was not running change the dictionary value 'maxLineLength': 100 from 'maxLineLength': 79.

Started my app and it worked now if you edit the file while your spyder app is running upon shutting down it will overwrite what ever is in the ~/.config/spyder.ini.

Ensure it is not running and make the necessary changes