Since chess uci is no longer supported, what is a simple fix for older code that uses this module?

[infinitless]

Question says it all. Was trying to run this https://github.com/mptedesco/python-chess-analysis but then ran into chess.uci not existing.

Is there an easy fix? Also notified the author so any comments might help them too!

[niklasf]

The new chess.engine module can do everything that chess.uci could and vice versa, but there is no mechanical recipe to convert from chess.uci to chess.engine. However, usually the process is straight-foward. In this case:

1. chess.uci.popen_engine(path) becomes chess.engine.SimpleEngine.popen_uci(path), if you do not intend to use asyncio.
2. InfoHandler has been removed. No need to register one, anymore.
3. engine.position(board) and engine.go(time=time_in_millis) for the purpose of analysis is now a single call info = engine.analyse(board, chess.engine.Limit(time=time_in_seconds)).
4. info["pv"][0] is the best move according to the engine.
5. info["score"] will be a PovScore, that you can use to get the centi-pawn or mate evaluation from the desired perspective.

[TomHagenWills]

@infinitless did you manage to have Matthew P. Tedesco´s script work? I have tried to adapt it, but I am beginner in Python. I would greatly appreciate your help!

[infinitless]

I am a beginner too, unfortunately. It all depends on what kind of application you are writing!

[TomHagenWills]

Thanks for taking the time to answer. I am trying to develop a script to analyze my games, identify good/bad moves, visualize evaluations, etc.
There seems to be no comprehensive documentation of the python chess package, unfortunately.
FYI I found an interesting script "Centipawn Loss Calculator" in the description of this video:
https://www.youtube.com/watch?v=YnnJ0Da4Rp0&t=406s

[infinitless]

Actually, I would encourage you to join Discord and look for communities there - there are literally hundreds of people developing Python Chess apps and they talk regularly on Discord. I had most of my queries answered here by some really good and talented people! https://discord.com/invite/python