I see the literal 'escape' character + 'k', when it should
let me edit previous commands.
I did have to compile my own python because I'm using 2.7 on
this machine.
I figured it out. I needed to apt install libreadline-dev.
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For this to work, the Python implementation should use the same
readline library as your shell, I guess.
It works in python3, so I guess my problem is that I'm
compiling python (I think kubuntu dropped python2), but
I don't see any relevant options in the configure help.
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