Install fails, "zlib not available"

[conery]

Hi --

I used 'brew install pyenv', defined PYENV_ROOT and added pyenv init to my profile.

When I tried 'pyenv install 3.4.3' the process failed with the message "zipimport.ZipImportError: can't decompress data; zlib not available". I have zlib, also installed via brew.

Other info: OS X 10.11.2, Python 3.5.1 (installed with brew).

Any suggestions?

Thanks....

[dnmiller]

Ran into this as well. Looks like a good ol' XCode update snuck in and clobbered zlib again.

xcode-select --install

solved it for me.

[AlJohri]

https://github.com/yyuu/pyenv/wiki/Common-build-problems#build-failed-error-the-python-zlib-extension-was-not-compiled-missing-the-zlib

[yyuu]

xcode-select should solve.

Please update the Wiki page if you realized something more needed.

https://github.com/yyuu/pyenv/wiki/Common-build-problems#build-failed-error-the-python-zlib-extension-was-not-compiled-missing-the-zlib

[geoidesic]

xcode-select doesn't fix the issue for me on Mac OS X Mojave (10.14)

[WillDeuz]

Hey @geoidesic to solve the problem on Mojave I ran

$ brew upgrade

Then

$ pyenv install 3.6.3

I have some warning from sqlite3 but the python version was installed.

[geoidesic]

Thanks but that didn't work for me. Not sure if it's related but I'm trying to install 3.5.6.

[WillDeuz]

did you see a pyenv package upgrade with "mojave" name on it when you run brew upgrade?

I would suggest to reinstall pyenv

[jamesmallen]

What I had to do was specify CFLAGS as mentioned on the FAQ page, e.g.,

$ CFLAGS="-I$(xcrun --show-sdk-path)/usr/include" pyenv install -v 3.5.6

[geoidesic]

What I had to do was specify CFLAGS as mentioned on the FAQ page, e.g.,

$ CFLAGS="-I$(xcrun --show-sdk-path)/usr/include" pyenv install -v 3.5.6

Is that for .bash_profile?

[guidefreitas]

Same problem here in Mojave.

It did install the mojave pyenv package but fails to install python 3.7.0 with "zipimport.ZipImportError: can't decompress data; zlib not available"

@jamesmallen trick worked.
CFLAGS="-I$(xcrun --show-sdk-path)/usr/include" pyenv install 3.7.0

[WillDeuz]

Seems the solution is:

1. Install the Mojave pyenv package
2. export the env variables with the path

[bobinson]

same problem for me too & the following worked

CPPFLAGS="-I/usr/local/opt/zlib/include" pyenv install -v 3.7.0

[joshfriend]

Zlib not being found on mojave is a separate issue: #1219