pip install -U spacy fails

[arencambre]

How to reproduce the problem

On a computer with vanilla Windows 10 Professional

1. Download and install the Windows x86-64 executable installer from https://www.python.org/downloads/release/python-380/.
2. In a command prompt window, run pip install -U spacy.

Instead of a successful install, I get a litany of errors: errors.txt

Your Environment

• Operating System: Windows 10
• Python Version Used: 3.8.0
• spaCy Version Used: Whatever downloads on Nov. 5, 2019 with pip install -U spacy
• Environment Information: N/A

[ines]

Hi! See my comment on #4581:

I think the main thing that's causing problems here is that you're using Python 3.8. We can't yet ship pre-compiled wheels for Python 3.8 (unfortunately it's not fully supported by any CI providers we use at the moment), so if you want to install spaCy on 3.8, you have to build everything from source. And that seems to fail, likely due to how your compiler is configured, which is not correct for compiling blis.

Simplest solution: use Python 3.7 for now.

[arencambre]

Thank you. Asked for documentation to be improved at #4593.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.