Cannot mix incompatible Qt library (version 0x50907) with this library (version 0x50e02)

解决方法：

更换包的顺序，将Torch的包放在matplotlib的前面

import os
import argparse
import numpy as np
from matplotlib import pyplot as plt
import torch
import torch.backends.cudnn as cudnn

改为：

import os
import argparse
import numpy as np
import torch
import torch.backends.cudnn as cudnn
from matplotlib import pyplot as plt