Conflict between python2 and python3 when running locally

[yihong0618]

As pic shows.

When run locally it may pip as python3 and run as python2 and raise the import error

something like.

[PsiACE]

closed by #3690

also, I don't think we would consider supporting Python2.

[yihong0618]

@PsiACE I think the code wait_tcp is running in Python2 do you want to make it to Python3?

[PsiACE]

@PsiACE I think the code wait_tcp is running in Python2 do you want to make it to Python3?

Certainly. It is well known that python2 is at the end of its life cycle.

[yihong0618]

@PsiACE I think the code wait_tcp is running in Python2 do you want to make it to Python3?

Certainly. It is well known that python2 is at the end of its life cycle.

Cool, can I take a try?

[PsiACE]

Cool, can I take a try?

Thank you for your willingness to help, please feel free to submit a PR