Python indentation in "empty lines"

Question

Which is preferred ("." indicating whitespace)?

A)

def foo():     x = 1     y = 2 ....     if True:         bar() 

B)

def foo():     x = 1     y = 2      if True:         bar() 

My intuition would be B (that's also what vim does for me), but I see people using A) all the time. Is it just because most of the editors out there are broken?

Answer 1

If you use A, you could copy paste your block in python shell, B will get unexpected indentation error.