ops.py syntax invalid

[caozhp3]

I can't run the main.py due to the error shown in the figure. Can you help me figure out how to solve this ,thank very much~

[khaotik]

@caozhp3 I don't have time to work on it, but it looks trivial. Either you are running python2, or an old version of python3. Using latest version of python3 would be a quick solution.