SyntaxError on Centos 7

[bear410hk]

File "detect_doublepulsar_smb.py", line 7

^
SyntaxError: invalid syntax

I tired use python2 also get this error.

my python version :
Python 2.7.5 (default, Nov 6 2016, 00:28:07)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux2

any suggest or help ?

Thanks~