
* Fixes Homebrew/homebrew#20572 by tweaking the logic that decides which python is used by the `python` object inside a formula. There was a bug when on 10.6 there is no Python 2.7 but a :recommended Python was still treated as being available. * Use the user's PATH when looking for an external Python. Until now only brewed or OS X system's python have been found by `depends_on :python`. But now we support any Python in PATH (e.g. pyenv's python). * Further, instead of handling python modules and import tests in LanguageModuleDependency, these are now handled by: depends_on :python => 'numpy' # for example The old style depends_on 'numpy' => :python is still supported and is only an alias for the newer style (only for :python, the other languages are not altered by this commit). The reasoning is that if a formula requires a python module, it basically also needs python itself - and further that specific version of python has to provide the module. So the `PythonInstalled` is the natural place to check for the availability of a python module. Using a python module and other tags like :optional or :recommended is done like so: depends_on :python => [:optional, 'numpy'] Specifying another PyPi (Python Package index) name than the module import name is seldom used but supported, too: depends_on :python => ['enchant'=>'pyenchant'] A last note: For clarity, you can define multiple depends_on statements with different modules to be importable.`
Homebrew
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What Packages Are Available?
- You can browse the Formula directory on GitHub.
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Who Are You?
I'm Max Howell and I'm a splendid chap.
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