Python Sip [RuntimeError: the sip module implements API v11.0 to v11.2 but the PyQt5.QtCore module requires API v11.3]

不知道原因，尝试卸载、编译安装均失败。只有这样曲线救国

   import matplotlib
   matplotlib.use("WXAgg",warn=True)
   import matplotlib.pyplot as plt