Andy Kipp

dict object uses hash function for search by key it's pretty close to prefix tree by timings

yep, nice feature for commands_cache

To avoid bikeshedding effect I'm going to do self merge.

@jnoortheen @gforsyth it's ready to review! Thanks!

Workaround: [xunter](https://github.com/anki-code/xunter) - Tracing and profiling for the xonsh shell based on python-hunter.

+ autocomplete for the multiline text instead of line by line.

hey! You're doing nice thing! Hmm, for me it looks like a bug because: ```xsh @aliases.register('a') def _a(): print("1-hello") echo 2-hello $(a) # '1-hello\n2-hello\n' # Catching stdout is working well...

What exactly is eza and what is the result of `$(eza)`? I got this: > BTW, can x-cmd be added to the list below? PR is welcome!

I have this: This means that: * `eza` detecting that TTY detached in captured mode `$()` and removes colors. * In the uncaptured mode `$[]` everything is fine because TTY...

Can you give me the list of commands starting from `docker run` to build the same container? Also please use xonsh 0.17.0 for tests.