Until recently the CIY was the only way to get everything working on Lion but now the developers of NumPy, SciPy, and matplotlib have all caught up and it’s possible to just download and double-click on a few DMG files to get a basic scientific Python installation working. But it’s more hassle than everyone wants and there’s now an easier way using double-click installers. With Homebrew and pip I can uninstall and upgrade different things at will, or choose to install bleeding-edge versions. I personally use the CIY method because it allows me to very easily control what’s installed. What I’ll describe below I’ll call the “double click” method.

That’s what I’ll call the compile-it-yourself (CIY) method. bash_profile and dealing with compiler problems. I’ve already written a post about installing Python, NumPy, SciPy, and matplotlib on Lion, but it involves a lot of working at the command line, modifying your. See the “Install Python” page for the most up-to-date instructions. Update: These instructions are over a year old, though they may still work for you. Setting the State of a Postgres Sequence.

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