Accessing python objects within objects in Python

Question

I have a Python object called "form" looking like this:

> dir(form)

['Meta', 'SECRET_KEY', 'TIME_LIMIT', '__class__', '__contains__', '__delattr__', '__delitem__', '__dict__', '__doc__', '__format__', '__getattribute__', '__getitem__', '__hash__', '__init__', '__iter__', '__module__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__setitem__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', '_errors', '_fields', '_get_translations', '_prefix', '_unbound_fields', '_wtforms_meta', 'csrf_enabled', 'csrf_token', 'data', 'errors', 'f', 'generate_csrf_token', 'hidden_tag', 'i', 'is_submitted', 'meta', 'node_1', 'node_2', 'node_3', 'node_4', 'nodes', 'populate_obj', 'process', 'r', 'reader', 'submit', 'validate', 'validate_csrf_data', 'validate_csrf_token', 'validate_on_submit']

This object always contains a given number of objects which names start with "node_". The number of these objects is alway different.

I need to retreive all of these objects from another function, and get the content of form.node_1.data, form.node_2.data, form.node_3.data, etc.

I can list all these "node" objects like this:

for u in dir(form):
    if not u.startswith('__'):
        if u.startswith('node_'):
            print u

But all I get is a string, not the object itself.

How can I access the value of all these "node objects"?

(I hope the vocabulary is right...)

gariepy · Accepted Answer · 2016-01-19 23:31:54Z

2

Try getattr:

for u in dir(form):
    if not u.startswith('__'):
        if u.startswith('node_'):
            print getattr(form, u)

answered Jan 19, 2016 at 23:31

gariepy

3,6846 gold badges24 silver badges34 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

midori · Accepted Answer · 2016-01-19 23:34:44Z

1

You can grab those pretty easy:

atribs = [getattr(form, attr) for attr in dir(form) if attr.startswith('node_')]

answered Jan 19, 2016 at 23:34

midori

4,8375 gold badges37 silver badges62 bronze badges

Collectives™ on Stack Overflow

Accessing python objects within objects in Python

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related