An analysis of Python inheritance

This article mainly introduces in-depth analysis of Python inheritance issues related materials, very good, interested friends to see together

Like the following code:

Class P1:def __init__ (self,a,b):p rint ("Init in P1") self.a1=aself.b1=bself.f1 () def F1 (self):p rint ("F1 in P1") Class C1 ( p1):d ef __init__ (self,a,b,c=2):p rint ("Init in C1") p1.__init__ (self,a,b) self.c1=cself.f1 () def F1 (self):p rint ("F1 in P2 ") Class C2 (C1):p assc=c2 (11,22) print (c.a1) print (C.B1) print (C.C1)

The code then runs the following results:

F:\python_code\test>python class_init.pyinit in C1init in P1f1 in P2f1 in p211222

With regard to the running of the code, I have the following questions, I will call to p1.__init__ () in the __init__ function of C1, and then each time it is run c1.f1 () function, no function running P1.f1 (), p1 running in F1 (), How is c1.f1 (). Why?

Cause Analysis:

p1.__init__ (SELF,A,B)

Self in this line of code is an object of C1. So the self that is passed to P1 inside is C1.

The above content described through the code to introduce the Python inheritance problem, we hope to help!