pyenv seems to be not respecting PATH

[bowerscd]

Too many issues will kill our team's development velocity, drastically.
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Description

• [x] Platform information (e.g. Ubuntu Linux 16.04): MacOS 10.13.6
• [x] OS architecture (e.g. amd64): amd64
• [x] pyenv version: 1.2.7
• [x] Python version: 3.7.0 (pyenv-set) | 2.7.10 (system)
• [x] C Compiler information (e.g. gcc 7.3): apple clang 10.0.0 (clang-1000.10.44.2)
• [x] [Please attach verbose build log as gist](https://gist.github.com/bowerscd/bea2cb04bd82840ddacbc94de64c67ec)
  
  
  
  • You can turn on verbose debug logging using by setting PYENV_DEBUG=1, e.g. env PYENV_DEBUG=1 pyenv install -v 3.6.4
  
  

pyenv seems to be ignoring the PATH variable for finding binaries. In this case, specifically, it's clang. In the gist you can see that PATH is:

PATH='/usr/local/Cellar/pyenv/1.2.7/libexec:/Users/<USER>/.pyenv/shims:/Users/<USER>/.pyenv/shims:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Applications/VMware Fusion.app/Contents/Public:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Applications/Xamarin Workbooks.app/Contents/SharedSupport/path-bin'

clang can be found in /usr/bin/clang:

pc:voice <USER>$ ls /usr/bin/clang
-rwxr-xr-x  1 root  wheel  18288 Jul  4 02:07 /usr/bin/clang

but pyenv which clang reports command not found:

pc:voice <USER>$ pyenv which clang
pyenv: clang: command not found

This makes it difficult to install pip packages that require compilation (hmmlearn, for example), though a work-around I've found is exporting CC=clang, for certain packages.

[ezdac]

I get a similar behaviour on MacOS 10.12.6 and pyenv 1.2.4.
As a note, I use the pyenv-virtualenv and pyenv-virtualenvwrapper plugin.

A binary in /usr/local/bin installed via Homebrew won't get found by pyenv when I am not in the system python version.

When in the system python:

➜ pyenv which raiden
/usr/local/bin/raiden

When I set a "shell" virtualenv (named global):

➜ pyenv shell global
(global)

➜ pyenv which raiden
pyenv: raiden: command not found

[hvdklauw]

Yeah, this seems to be the underlying issue for a lot of errors I ran into trying to fix my checking whether the C compiler works... no issue.
Settings all kinds of flags leads to other errors I see reported here and on stackoverflow which wasn't a fix for me.

In the end what worked for me is
pyenv --debug install <version> where version is a cpython version.
Then manually going to the working tree folder and running the python-build <version> /Users/hvdklauw/.pyenv/versions/<version> command.

That would run just fine and install the version for python without issue.

Should note that this is pyenv 1.2.11 (and HEAD) installed through homebrew on os 10.14.4.

[danieltahara]

Something about how the brew installation works is a problem -- this all works fine on Linux, but I am running into the same issue on OSX.

I tried just using the install script: https://github.com/pyenv/pyenv-installer and things work properly.