Transformation structures into a dict and backwards

E.g. transfirmation structures into a dict is used for passing structures to pickle...

to_dict(structure)

The function creates a dict with structure’s contents. It works recursively.

>>> from structures import *
>>> class S(Structure):
...     class s(Structure):
...         i = Integer(13)
...     f = Float(3.14)
...     l = List([1, set([2, 3])])
...
>>> s = S()
>>> assert to_dict(s) == {'s': {'i': 13}, 'f': 3.14, 'l': [1, set([2, 3])]}

from_dict(structure_class, data)

The function creates structure structure_class from the dict data. It creates substructures appropriate types too i.e. it works recursively.

>>> from structures import *
>>> class S(Structure):
...     class s(Structure):
...         i = Integer(13)
...     f = Float(3.14)
...     d = Decimal('8.62')
...
>>> s = from_dict(S, {'s': {'i': 26}, 'd': '2.64', 'f': 9.82})
>>> assert s.f == 9.82
>>> assert s.s.i == 26
>>> s.d
Decimal('2.64')