CFFI UserWarning: 'point_conversion_form_t' has no values explicitly defined;

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I'm getting the following warning when running a scrapy crawler:

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 hadn't been getting this in my previous Anaconda Python install on my Windows 10. I had to reset my environment and now I am.

It's not preventing the crawler from running, but it's kind of annoying. Can anyone tell me what might be causing this?

1 Answers

Downgrading to cffi==1.2.1 ended up being the solution for me.

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