Error when trying to install pyqt4 with brew about homebrew-qt4

[cartr]

Hi there! Sorry to hear the pyqt@4 formula didn't work correctly on your machine.

Could you please run the brew config and brew doctor commands and paste the output into a Gist so I can take a look at them?

[crintus]

Here you go https://gist.github.com/crintus/90cadff89ac7cc6df06ec448d2297c70

[cartr]

@crintus It appears the root cause of this issue is that sip didn't get linked properly because an existing installation was in the way. It's possible this has something to do with the fact that you have Anaconda installed, or maybe it somehow got installed through pip or something.

If you run brew link --overwrite --dry-run sip, back up the listed files, then run brew link --overwrite sip, are you still unable to install PyQt?

[crintus]

Yeah, next issues is the following

» brew install pyqt@4 --with-python3
Updating Homebrew...
==> Installing pyqt@4 from cartr/qt4
==> Downloading https://sourceforge.net/projects/pyqt/files/PyQt4/PyQt-4.12/PyQt4_gpl_mac-4.12.tar.gz/download
Already downloaded: /Users/johan/Library/Caches/Homebrew/[email protected]
==> python configure.py --confirm-license --bindir=/usr/local/Cellar/pyqt@4/4.12_1/bin --destdir=/usr/local/Cellar/pyqt@4/4.12_1/lib/python2.7/site-packages --sipdir=/usr/local/Cellar/pyqt@4/4.12_1/share/
==> python configure-ng.py --confirm-license --bindir=/usr/local/Cellar/pyqt@4/4.12_1/bin --destdir=/usr/local/Cellar/pyqt@4/4.12_1/lib/python2.7/site-packages --sipdir=/usr/local/Cellar/pyqt@4/4.12_1/sha
==> make
Last 15 lines from /Users/johan/Library/Logs/Homebrew/pyqt@4/03.make:
In file included from sipQtCorecmodule.cpp:24:
In file included from ./sipAPIQtCore.h:27:
/usr/local/include/sip.h:32:10: fatal error: 'Python.h' file not found
#include <Python.h>
         ^
1 error generated.
1 error generated.
1 error generated.
make[1]: *** [sipQtCoreQAbstractAnimation.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: *** [qpycore_post_init.o] Error 1
make[1]: *** [sipQtCoreQAbstractEventDispatcher.o] Error 1
1 error generated.
make[1]: *** [sipQtCorecmodule.o] Error 1
make: *** [sub-QtCore-make_default-ordered] Error 2

If reporting this issue please do so at (not Homebrew/brew or Homebrew/core):
https://github.com/cartr/homebrew-qt4/issues

These open issues may also help:
pyqt@4 - WebKit is broken https://github.com/cartr/homebrew-qt4/issues/21

[davebest]

On Yosemite I got past that part with --overwrite, but fail on mutagen because the project has moved from bitbucket to github.

[crintus]

It's worth a shot I guess. I no longer need this issue to be resolved. @cartr you can close this if you are happy to not resolve it

[cartr]

I was unable to reproduce this issue on a fresh install of Sierra, and so I suspect it has something to do with Anaconda being installed on your system, which is not something Homebrew supports very well.

For other people having this issue, you might want to try running conda install pyqt=4 to install PyQt4 through Anaconda instead of Homebrew.

[crintus]

wow, conda install pyqt=4 actually did the trick. All that effort for a simple fix. Thanks so much @cartr for the help