66 lines
1.5 KiB
Ruby
66 lines
1.5 KiB
Ruby
require "language/python"
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class PythonRequirement < Requirement
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fatal true
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default_formula "python"
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satisfy build_env: false do
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python = which_python
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next unless python
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version = python_short_version
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next unless version
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# Always use Python 2.7 for consistency on older versions of Mac OS X.
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version == Version.create("2.7")
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end
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env do
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short_version = python_short_version
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if !system_python? && short_version == Version.create("2.7")
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ENV.prepend_path "PATH", which_python.dirname
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end
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# Homebrew Python should take precedence over other Pythons in the PATH
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ENV.prepend_path "PATH", Formula["python"].opt_bin
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ENV.prepend_path "PATH", Formula["python"].opt_libexec/"bin"
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ENV["PYTHONPATH"] = "#{HOMEBREW_PREFIX}/lib/python#{short_version}/site-packages"
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end
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def python_short_version
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@short_version ||= Language::Python.major_minor_version which_python
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end
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def which_python
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python = which python_binary
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return unless python
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Pathname.new Utils.popen_read(python, "-c", "import sys; print(sys.executable)").strip
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end
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def system_python
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"/usr/bin/#{python_binary}"
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end
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def system_python?
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system_python == which_python.to_s
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end
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def python_binary
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"python"
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end
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# Deprecated
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alias to_s python_binary
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end
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class Python3Requirement < PythonRequirement
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fatal true
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default_formula "python3"
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satisfy(build_env: false) { which_python }
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def python_binary
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"python3"
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end
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end
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