We do not have this optional test dependency packaged yet.

--- mako-1.4.1/tox.ini.orig
+++ mako-1.4.1/tox.ini
@@ -7,7 +7,6 @@
 cov_args=--cov=mako --cov-report term --cov-report xml
 
 deps=pytest>8
-     beaker
      markupsafe
      pygments
      babel