For-else loop misbehavior?

[buran]

First line of output should always be: n=2, x=2 (this is never output!)

if n=2 then in the inner loop x will try to iterate over range(2,2). However range(2,2) is empty one:

>>> list(range(2,2))
[]

so the loop body (lines 3-8) is never executed (and thus no break statement) so else part (lines 10-11) is executed and it prints that 2 is prime number