111 It contains metadata describing your cube, mostly useful for

   111 It contains metadata describing your cube, mostly useful for packaging.

   112 packaging.

   112 

   113 Two important attributes of this module are __depends__ and __recommends__

   114 dictionaries that indicates what should be installed (and each version if

   115 necessary) for the cube to work.

   116 

   117 Dependency on other cubes are expected to be of the form 'cubicweb-<cubename>'.

   118 

   119 When an instance is created, dependencies are automatically installed, while

   120 recommends are not.

   121 

   122 Recommends may be seen as a kind of 'weak dependency'. Eg, the most important

   123 effect of recommending a cube is that, if cube A recommends cube B, the cube B

   124 will be loaded before the cube A (same thing happend when A depends on B).

   125 

   126 Having this behaviour is sometime desired: on schema creation, you may rely on

   127 something defined in the other's schema; on database creation, on something

   128 created by the other's postcreate, and so on.