import sys
print(sys.version)
#2.7.13

print([([] < ''), ([] > ''), ('' < []), ('' > [])])
#[True, False, False, True]

import sys
print(sys.version)
#3.6.5
#Traceback (most recent call last):
#  File "<stdin>", line 1, in <module>
#TypeError: '<' not supported between instances of 'list' and 'str'