59 lines
1.4 KiB
Ruby
59 lines
1.4 KiB
Ruby
require "language/python"
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class PythonDependency < 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 OSX.
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version == Version.new("2.7")
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end
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def pour_bottle?
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build? || system_python?
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end
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def modify_build_environment
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if system_python?
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if python_binary == "python"
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version = python_short_version
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ENV["PYTHONPATH"] = "#{HOMEBREW_PREFIX}/lib/python#{version}/site-packages"
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end
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elsif which_python
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ENV.prepend_path "PATH", which_python.dirname
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end
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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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executable = `#{python} -c "import sys; print(sys.executable)"`.strip
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return unless executable
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Pathname.new executable
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end
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def system_python; "/usr/bin/#{python_binary}" end
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def system_python?; system_python == which_python.to_s end
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def python_binary; "python" end
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# Deprecated
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alias_method :to_s, :python_binary
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end
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class Python3Dependency < PythonDependency
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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; "python3" end
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end
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