st3=>start: start foo
io5=>inputoutput: input: a, b
cond9=>condition: if a
sub13=>subroutine: print('a')
io34=>inputoutput: output: (a + b)
e32=>end: end function return
cond18=>operation: print('b') while i in range(3)
Please do describe your issue, offer your inputted python source code and command executed, as well, without which I cannot even guess what's wrong with this generated mess.
st3=>start: start foo io5=>inputoutput: input: a, b cond9=>condition: if a sub13=>subroutine: print('a') io34=>inputoutput: output: (a + b) e32=>end: end function return cond18=>operation: print('b') while i in range(3)
st3->io5 io5->cond9 cond9(yes)->sub13 sub13->io34 io34->e32 cond9(no)->cond18 cond18->io34