ImportError: cannot import name 'Xxxx' from partially initialized module 'xx.xx.xx'

ImportError: cannot import name 'Xxxx' from partially initialized module 'xx.xx.xx'

In pyhton, when this problem is encountered, after checking the code, no error is reported or the error has been changed, when the error is still reported at runtime, it is very likely to be a deadlock problem. The root causes are: twoEach file guides each other, forming an inner loop. The solution is to plan the business logic and avoid mutual guide.