Description of problem:
Weechat does not load its Python plugin -> therefore no python script can be used any more

Version-Release number of selected component (if applicable):
weechat.x86_64                               2.3-1.fc30                                @rawhide

How reproducible:
Always

Steps to Reproduce:
1. start Weechat

Actual results:
23:01   ___       __         ______________        _____ 
23:01   __ |     / /___________  ____/__  /_______ __  /_
23:01   __ | /| / /_  _ \  _ \  /    __  __ \  __ `/  __/
23:01   __ |/ |/ / /  __/  __/ /___  _  / / / /_/ // /_  
23:01   ____/|__/  \___/\___/\____/  /_/ /_/\__,_/ \__/  
23:01 WeeChat 2.3 [compiled on Nov 28 2018 15:17:42]
23:01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
23:01 ? Error: unable to load plugin "/usr/lib64/weechat/plugins/python.so": /usr/lib64/weechat/plugins/python.so: undefined symbol: _Py_NoneStruct
23:01 ? If you're trying to load a script and not a C plugin, try command to load scripts (/perl, /python, ...)
23:01 perl scripts loaded: highmon
23:01 lua scripts loaded: emoji
23:01 script: 358 scripts for WeeChat 2.3
23:01 Plugins loaded: alias, aspell, buflist, charset, exec, fifo, fset, guile, irc, logger, lua, perl, relay, ruby, script, tcl, trigger, xfer

Expected results:
Python plugin load (so it is listed in plugins loaded:) and I see my python scripts loaded


Additional info:
It used to work, but I don't remember what exactly happened to make it not work now