Question

How can I iterate over an object and assign all it properties to a list

From

a = []

class A(object):
    def __init__(self):
        self.myinstatt1 = 'one'
        self.myinstatt2 = 'two'

to

a =['one','two']

Answer 1

Don’t create a full fledged class if you just want to store a bunch of attributes and return a list so that your API can consume it. Use a namedtuple instead. Here is an example.

>>> import collections
>>> Point = collections.namedtuple('Point', ['x', 'y'])
>>> p = Point(1, 2)
>>> p
Point(x=1, y=2)

If your API just expects a sequence (not specifically a list), you can pass p directly. If it needs a list specifically, it is trivial to convert the Point object to a list.

>>> list(p)
[1, 2]

You can even subclass the newly created Point class and add more methods (documentation has details). If namedtuple doesn’t meet your needs, consider sub-classing abc.Sequence Abstract Base Class or using it as a mixin.