# http://es.stackoverflow.com/q/23328/127
from dis import dis
def ne(x):
if x != 'val':
pass
def en(x):
if not x == 'val':
pass
def ee(x):
if x == 'val':
pass
else:
pass
print('!=')
dis(ne)
print('not ==')
dis(en)
print('== else')
dis(ee)
IyBodHRwOi8vZXMuc3RhY2tvdmVyZmxvdy5jb20vcS8yMzMyOC8xMjcKZnJvbSBkaXMgaW1wb3J0IGRpcwoKZGVmIG5lKHgpOgogICAgaWYgeCAhPSAndmFsJzoKICAgICAgICBwYXNzCgpkZWYgZW4oeCk6CiAgICBpZiBub3QgeCA9PSAndmFsJzoKICAgICAgICBwYXNzCgpkZWYgZWUoeCk6CiAgICBpZiB4ID09ICd2YWwnOgogICAgICAgIHBhc3MKICAgIGVsc2U6CiAgICAgICAgcGFzcwogICAgICAgIApwcmludCgnIT0nKQpkaXMobmUpCnByaW50KCdub3QgPT0nKQpkaXMoZW4pCnByaW50KCc9PSBlbHNlJykKZGlzKGVlKQ==