Source Code for Module rosh.impl.props

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33  # Revision $Id: props.py 11214 2010-09-23 05:06:22Z kwc $ 
34  """ 
35  props() interface for rosh 
36  """ 
37   
38 -def props(obj, **kwds): 
39      if not kwds: 
40          try: 
41              return obj._props() 
42          except: 
43              return [] 
44      else: 
45          todo = [] 
46          for name, val in kwds.iteritems(): 
47              try: 
48                  m = getattr(obj, '_set_%s'%name) 
49              except AttributeError: 
50                  raise AttributeError("object has no property named '%s'"%name) 
51              if m is None: 
52                  raise AttributeError("object has no property named '%s'"%name) 
53              todo.append((m, val)) 
54          # once validation passes, then call 
55          for m, val in todo: 
56              m(val) 
57