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

• The issue is present in the latest release.
• I have searched the [issues](https://github.com/mui

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

When I forget a multiplication sign * between two parentheses, I receive this error:

julia> (1/2)(3+4)
ERROR: MethodError: objects of type Float64 are not callable

This error is confusing for beginners. (A colleague was just stuck with that error and asked for help.) Could you add "Maybe you forgot a multiplication operator * after a number?" to it?