Python implements Yang Hui triangle (still legacy)

1 #! usr/bin/env Python32 #-*-coding:utf-8-*-3 Print('the generator of the Yang Hui Triangle')4 deftriangles ():5     6N=[1]7      whileTrue:8         yieldN9 n.append (0)TenN = [N[i-1]+n[i] forIinchRange (len (N))] One      ATriangles =triangles () -      forJinchRange (10): -         Print(Next (triangles))

Beat up the code as above. The python file name was hit at the command prompt. py But the result only shows:

And then it's incredible:

Why is the file name. py inside the next () does not execute????????????

Python implements Yang Hui triangle (still legacy)