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I would comment, but I don't have enough coinage. We need to figure out what is wrong: The packages do not exist in a known path that you have. We know this. So what is causing it? Either it's not being installed, or it is being installed and the binary is not in PATH. First, make sure it is being installed properly by pip. Do a pip install and let us ...


Problem sovled This issue was caused because I had imported a time machine back which was made using snow lepoard. Doing this had overwrote the mountain lion libraries. I just had to reinstall mountain lion over the existing install and then xcode and homebrew and it worked fine.


I personally use Homebrew, which is a very nice package manager. If you want to give this a try, first of all make sure you have the XCode Command Line Tools installed on your Mac. Then install Homebrew by typing ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" in the Terminal. Homebrew will place its "Cellar" (the ...


Use Homebrew :) brew install python3 To update it: brew update brew upgrade python3


FWIW, I had to actually use export PKG_CONFIG_PATH=/usr/local/Cellar/libffi/3.0.13/lib/pkgconfig/ to get this to work. Same command, but just the directory instead of the libffi.pc file itself.


There will be no correct answer to your question. Much relies on your preferences and development needs. Developers working on Mac or iOS software are expected, by Apple, to do so without using a virtual machine. If you are deploying to Linux or a non-Mac platform, a virtual machine is probably recommended. To test your software on other versions of OS X, ...

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