sklearn\utils\optimize.py“, line 243, in _check_optimize_result ).format(solver, result.status, resu

问题：

File "C:\Optimization\OptimEnv\env369\lib\site-packages\sklearn\gaussian_process_gpr.py", line 504, in _constrained_optimization
_check_optimize_result("lbfgs", opt_res)
File "C:\Optimization\OptimEnv\env369\lib\site-packages\sklearn\utils\optimize.py", line 243, in _check_optimize_result
).format(solver, result.status, result.message.decode("latin1"))
AttributeError: 'str' object has no attribute 'decode'

 

解决方法：

重新安装scipy1.5.3

I see the problem is in scipy 1.6.0 (it was released 12/31/2020), reverting to, say, scipy 1.5.3 fixes this, may be considered as a temporary solution.

 参考：

https://github.com/scikit-optimize/scikit-optimize/issues/981