1 .. _developerguide:

     2 

     3 

     4 PyAMS Developer's Guide

     5 =======================

     6 

     7 PyAMS package are developed based on ZCA

     8 

     9 

    10 

    11 .. seealso::

    12 

    13 

    14 Interfaces

    15 ----------

    16 

    17 Interfaces are objects that specify (document) the external behavior

    18 of objects that "provide" them.  An interface specifies behavior

    19 through:

    20 

    21 - Informal documentation in a doc string

    22 

    23 - Attribute definitions

    24 

    25 - Invariants, which are conditions that must hold for objects that

    26   provide the interface

    27 

    28 Attribute definitions specify specific attributes. They define the

    29 attribute name and provide documentation and constraints of attribute

    30 values.  Attribute definitions can take a number of forms, as we'll

    31