Odoo is the world's easiest all-in-one management software.
It includes hundreds of business apps:
My question is bit pythonic. but I am curious to know the answer.
I have seen in method Odoo is passing context=None. like
def create(self, cr, uid, vals, context=None):
if not context: context = {}
'''
code
'''
Why they have not used context={}? like
def create(self, cr, uid, vals, context={}):
'''
code
'''can anyone shade light on it?
Because {} is mutable and None is immutable.
Mutable default values are awkward: if you change the value in you function it will also change the *default* value for all later calls of your function.
See https://doc.odoo.com/contribute/15_guidelines/coding_guidelines_framework/#the-infamous-context
The lengthy discussion about that here: https://bugs.launchpad.net/openobject-addons/+bug/525808
This notation in python mean that context is a optionnal arg of the function. If no context is given, context is equal to none.
Crie uma conta hoje mesmo para aproveitar os recursos exclusivos e interagir com nossa incrível comunidade!
Inscreva-se| Publicações relacionadas | Respostas | Visualizações | Atividade | |
|---|---|---|---|---|
|
3
dez. 17
|
11931 | ||
|
1
jul. 25
|
1989 | ||
|
1
fev. 25
|
1272 | ||
|
0
jan. 24
|
4659 | ||
|
Pass context in calling of super method.
Resolvido
|
|
2
jan. 19
|
22094 |
1. Use the live chat to ask your questions.
2. The operator answers within a few minutes.
