Pylons/pyramid — pull request #636 by etanol (2012-07-17 08:21:40+00:00)
Title: Move Mako and Chameleon dependencies to the extras section

Pyramid seems to work either with Mako or Chameleon (i.e. when uninstalling one of them by hand and manually modifying the installed requires.txt file of Pyramid). It also works well with no templating engine, of course as long as templating is not being used.

So, instead of having to mangle the Pyramid installation, it could be handy to make Mako and Chameleon dependencies optional.