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

When defining custom classes tooltip or arrow on a Tooltip component used on a Textfield, the console shows warnings like:
The key tooltip provided to the classes prop is not implemented in ForwardRef(TextField). You can only override one of the following: root.

Proof read transcribed code of UPDATE_PROGRAM against scans

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Reduced quality scans can be found here

It is currently expected that UIs will figure out when to hide msg_history_show messages by themselves.

I think this is bad for two reasons:

• It makes UIs less similar, increasing the number of things to learn when going from one UI to another.
• It makes UIs different from the TUI, which offers a press ENTER prompt when the time to hide msg_history_show messages has come.

After [di

A minor cleanup for the future.

At the moment we use this in http11.py:

with suppress(AttributeError):
    txresponse._transport._producer.loseConnection()

[Once we drop support for Twisted < 18.4.0](twisted/twisted@3855923

julia> using LinearAlgebra
julia> a = [4 7 8;5 1 0; 6 0 1]
julia> A = [1 2 3; 4 1 6; 7 8 1]
julia> det(a)
-78.99999999999999
julia> det(A)
104.0

There shouldn't be any reason for that behaviour.