The 'prompt' does not respond on Windows7 and Pycharm

[BlueRhino]

I copied the code for this tutorials page ‘Loop The REPL’.And I ran it on PyCharm.I typed 123 and hit enter, but there was no response.

I used：
Windows7 SP1 X64
Python3.7
python-prompt-toolkit 2.0.8
Pycharm2018.3
And the Run/Debug Configuration is

[jonathanslenders]

I wonder whether this emulates a Window console or a vt100 terminal. I'm not sure what's going on, but I have a look when I have time.
Can I assume the code works fine outside of PyCharm in a console window?

[BlueRhino]

Thanks for your reply.And the code fine outside of Pycharm.