[COOK-3788] Make symlink for source built python

Signed-off-by: Sean OMeara <[email protected]>

Author: rgbkrk

recipes/source.rb

@@ -57,3 +57,12 @@
   }) if platform?("ubuntu") && node['platform_version'].to_f >= 12.04
   not_if { ::File.exists?(install_path) }
 end
+
+# Link install as the default python, to support Python 3.x
+# Otherwise the pip and virtualenv recipes won't work properly
+link node['python']['binary'] do
+  to install_path
+  not_if { ::File.exists?(node['python']['binary']) }
+end
+
+