which python version is required

[arch-user-france1]

ERROR: Could not find a version that satisfies the requirement tensorflow==2.5.1
ERROR: No matching distribution found for tensorflow==2.5.1

Could fix it by using conda but since I don't know which version I need I have to google that

[arch-user-france1]

Python Version 3.6 is required

[gl-yziquel]

As to myself, here are the versions with which lczero-training can be set up. As of today...

Python version: 3.10.14

numpy==1.22.0
tensorflow==2.11.1
tensorflow-tensorboard==0.4.0.rc2
protobuf==3.18.3

Python 3.6 does not work anymore: there is version incompatibility with numpy and tensorflow with the tf/requirements.txt file when taken out of the box.

For anyone wondering: you've got dependabot/pip/tf branches that seemingly try to guess the correct versions. The versions above are taking from this information in the git tree. And it seems to work.

P.S.: there are unmerged pull requests for that, such as this one: #213