Example of Choice usage

>>> from pysnmp.asn1 import univ
>>> class MyChoice(univ.Choice):
...     choiceNames = [ 'myint', 'mystr' ]
...     choiceComponents = [ univ.Integer, univ.OctetString ]
...     initialComponent = univ.Integer
...
>>> c = MyChoice()
>>> c
MyChoice('myint'=Integer(0L))
>>> c['myint'].set(10)
>>> c.items()
[('myint', Integer(10))]
>>> c['mystr'] = univ.OctetString('foobar')
>>> c
MyChoice('mystr'=OctetString('foobar'))
>>> len(c)
1
>>> c['myint'] = univ.Boolean()
Traceback (innermost last):
...
pysnmp.asn1.error.BadArgumentError: Unexpected component type Boolean at MyChoice
>>>