pyqwt: use correct site-packages directory

Fixes #11646.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

1 files changed, 13 insertions, 3 deletions

diff --git a/Library/Formula/pyqwt.rb b/Library/Formula/pyqwt.rb
index 175f2c9a9..9eceac79d 100644
--- a/Library/Formula/pyqwt.rb
+++ b/Library/Formula/pyqwt.rb
@@ -20,14 +20,24 @@ class Pyqwt < Formula
     cd "configure" do
       system "python",
              "configure.py",
-             "--module-install-path=#{lib}/python/PyQt4/Qwt5/",
-             "--sip-install-path=#{share}/sip/Qwt5/",
-             "--uic-install-path=#{lib}/python/PyQt4/",
+             "--module-install-path=#{lib}/#{which_python}/site-packages/PyQt4/Qwt5",
+             "--sip-install-path=#{share}/sip/Qwt5",
+             "--uic-install-path=#{lib}/#{which_python}/site-packages/PyQt4",
              "-Q", "../qwt-5.2"
       system "make install"
     end
   end
 
+  def caveats; <<-EOS.undent
+    For non-homebrew Python, you need to amend your PYTHONPATH like so:
+      export PYTHONPATH=#{HOMEBREW_PREFIX}/lib/#{which_python}/site-packages:$PYTHONPATH
+    EOS
+  end
+
+  def which_python
+    "python" + `python -c 'import sys;print(sys.version[:3])'`.strip
+  end
+
   def test
     system "python -c 'from PyQt4 import Qwt5 as Qwt'"
   end