import sys
print(sys.version)
3.7.0 (default, Jun 29 2018, 20:13:13) [Clang 9.1.0 (clang-902.0.39.2)]
print(type(sys.version))
<class 'str'>
print(sys.version_info)
sys.version_info(major=3, minor=7, micro=0, releaselevel='final', serial=0)
print(type(sys.version_info))
<class 'sys.version_info'>
print(sys.version_info[0])
3
print(sys.version_info.major)
3
if sys.version_info.major == 3:
print('Python3')
else:
print('Python2')
Python3