Python3: Unversioned symlinks are installed to directory not in PATH

[iBobik]

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• are reporting a bug others will be able to reproduce and not asking a question. If you're not sure or want to ask a question do so on our Discourse: https://discourse.brew.sh
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• ran brew update and can still reproduce the problem?
• ran brew doctor, fixed all issues and can still reproduce the problem?
• ran brew gist-logs <formula> (where <formula> is the name of the formula that failed) and included the output link?
  https://gist.github.com/253c222db37140c7e8c7a5bd03e386d7
• if brew gist-logs didn't work: ran brew config and brew doctor and included their output with your issue?

To help us debug your issue please explain:

• What you were trying to do (and why)
  Install Python 3
• What happened (include command output)
  Installed but links python → python3, pip → pip3 etc. does not work because they were created in folder what is not in PATH
• What you expected to happen
  Links shoudl be created in some common directory what is in PATH.
• Step-by-step reproduction instructions (by running brew install commands)

$ brew install python3
==> Installing dependencies for python: gdbm, openssl, readline, sqlite, xz
…
$ pip
-bash: pip: command not found
$ pip3

Usage:   
  pip3 <command> [options]
…
$ ls -l /usr/local/opt/python/libexec/bin
total 0
lrwxr-xr-x  1 Bobik  admin  26 26 dub 14:15 easy_install -> ../../bin/easy_install-3.6
lrwxr-xr-x  1 Bobik  admin  58 28 bře 12:24 idle -> ../../Frameworks/Python.framework/Versions/3.6/bin/idle3.6
lrwxr-xr-x  1 Bobik  admin  14 26 dub 14:15 pip -> ../../bin/pip3
lrwxr-xr-x  1 Bobik  admin  59 28 bře 12:24 pydoc -> ../../Frameworks/Python.framework/Versions/3.6/bin/pydoc3.6
lrwxr-xr-x  1 Bobik  admin  60 28 bře 12:24 python -> ../../Frameworks/Python.framework/Versions/3.6/bin/python3.6
lrwxr-xr-x  1 Bobik  admin  68 28 bře 12:24 python-config -> ../../Frameworks/Python.framework/Versions/3.6/bin/python3.6m-config
lrwxr-xr-x  1 Bobik  admin  16 26 dub 14:15 wheel -> ../../bin/wheel3

[ilovezfs]

Please see #25060

Upstream still wants python to mean Python 2.

[iBobik]

@ilovezfs Not a bug but an undocumented feature? ;-)

[commitay]

https://docs.brew.sh/Homebrew-and-Python