Class attribute property

Question

Good evening. There is a class (mongoengine):

class BaseMetaDocument(Document): unit = StringField(..., readonly = True) name = StringField(..., readonly = False) active = BooleanField(...)

Not all attributes have a readonly property defined, so when outputting to a form I use the code:

  ... try: readonly = v.readonly except: readonly = False info = dict(..., readonly = readonly) return info

Question: can you somehow write "in one line"?

Sergey Gornostaev Sergey Gornostaev 53.2k 6 28 66 · Accepted Answer · 2016-05-08T05:27:04

Yes, you can use the getattr () function:

 readonly = getattr(v, 'readonly', False)

zed zed 7.037 one eleven 27 · Answer 2 · 2016-05-08T05:35:50

There is a built-in function to check for the presence of a field / method: hasattr .

  if hasattr(a, 'property'): a.property`

2 answers 2