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caveats: recommend adding python site-packages with site.addsitedir

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Closes Homebrew/homebrew#33364. Fixes Homebrew/homebrew#30844.
This commit is contained in:
Tim D. Smith 2014-11-02 10:33:03 -08:00
parent 809e048b96
commit 1593b24b0f
1 changed files with 40 additions and 13 deletions
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53
Library/Homebrew/caveats.rb
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@ -48,21 +48,48 @@ class Caveats
def python_caveats
return unless keg
return unless keg.python_site_packages_installed?
return if Formula["python"].installed?
site_packages = if f.keg_only?
"#{f.opt_prefix}/lib/python2.7/site-packages"
else
"#{HOMEBREW_PREFIX}/lib/python2.7/site-packages"
s = nil
homebrew_site_packages = Language::Python.homebrew_site_packages
user_site_packages = Language::Python.user_site_packages "python"
pth_file = user_site_packages/"homebrew.pth"
instructions = <<-EOS.undent.gsub(/^/, " ")
mkdir -p #{user_site_packages}
echo 'import site; site.addsitedir("#{homebrew_site_packages}")' >> #{pth_file}
EOS
if f.keg_only?
keg_site_packages = f.opt_prefix/"lib/python2.7/site-packages"
unless Language::Python.in_sys_path?("python", keg_site_packages)
s = <<-EOS.undent
If you need Python to find bindings for this keg-only formula, run:
echo #{keg_site_packages} >> #{homebrew_site_packages/f.name}.pth
EOS
s += instructions unless Language::Python.reads_brewed_pth_files?("python")
end
dir = "~/Library/Python/2.7/lib/python/site-packages"
dir_path = Pathname.new(dir).expand_path
file = "#{dir}/homebrew.pth"
file_path = Pathname.new(file).expand_path
if !file_path.readable? || !file_path.read.include?(site_packages)
s = "If you need Python to find the installed site-packages:\n"
s += " mkdir -p #{dir}\n" unless dir_path.exist?
s += " echo '#{site_packages}' > #{file}"
return s
end
return if Language::Python.reads_brewed_pth_files?("python")
if !Language::Python.in_sys_path?("python", homebrew_site_packages)
s = <<-EOS.undent
Python modules have been installed and Homebrew's site-packages is not
in your Python sys.path, so you will not be able to import the modules
this formula installed. If you plan to develop with these modules,
please run:
EOS
s += instructions
elsif keg.python_pth_files_installed?
s = <<-EOS.undent
This formula installed .pth files to Homebrew's site-packages and your
Python isn't configured to process them, so you will not be able to
import the modules this formula installed. If you plan to develop
with these modules, please run:
EOS
s += instructions
end
s
end
def app_caveats