As discussed in #3926, the following files do not have .py extensions because TensorFlow does not yet support the current Python.

• dynamic_programming/k_means_clustering_tensorflow.py_tf
• machine_learning/lstm/lstm_prediction.py_tf
• neural_network/gan.py_tf
• neural_network/input_data.py_tf

TODO: Restore the .py file extensions

• screen scale problem.

Hi.
I'm using a Windows 7 Ultimate 64bit PC with the latest Chrome version.
It's quite common to use at least a 125 % 'scale' screen setting for medium to larger screen resolutions.
And they can be changed rapidly to test. But if you leave the normal 'browser' zoom at 100% the sketches are not playing properly.
For example in [this sketch](https://www.openprocessin

Tick-Tack-Toe game is not working for exception part

Description

Else part on line 247 takes you to infinite loop on getting any char value as input for position.

Expected Behavior

Environment:

• CTFd Version/Commit: 3.1.1

• Operating System: Linux linux 5.4.0-52-generic #57~18.04.1-Ubuntu SMP Thu Oct 15 14:04:49 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

• Web Browser and Version: `Google Chrome 86.0.424