CFFI UserWarning: "point_conversion_form_t" has no explicit values;

Question

I get the following warning when starting the scanner:

C:\Users\dan\Anaconda2\envs\scrapy\lib\site-packages\cffi\model.py:526: UserWarning: 'point_conversion_form_t' has no values explicitly defined; next version will refuse to guess which integer type it is meant to be (unsigned/signed, int/long) % self._get_c_name())

I did not get this in my previous Anaconda Python installation on my Windows 10. I had to reset my environment and now I am.

This does not prevent the scanner from starting, but it is annoying. Can someone tell me what could be causing this?

Answer 1

Downgrading to cffi == 1.2.1 turned out to be a solution for me.