In [1]:

    

import sys


    

In [2]:

    

print(sys.version)


    

    




3.7.0 (default, Jun 29 2018, 20:13:13) 
[Clang 9.1.0 (clang-902.0.39.2)]

In [3]:

    

print(type(sys.version))


    

    




<class 'str'>

In [4]:

    

print(sys.version_info)


    

    




sys.version_info(major=3, minor=7, micro=0, releaselevel='final', serial=0)

In [5]:

    

print(type(sys.version_info))


    

    




<class 'sys.version_info'>

In [6]:

    

print(sys.version_info[0])


    

    




3

In [7]:

    

print(sys.version_info.major)


    

    




3

In [8]:

    

if sys.version_info.major == 3:
    print('Python3')
else:
    print('Python2')


    

    




Python3