On Wed, Dec 17, 2014 at 9:48 PM, Aymeric Augustin
<aymeric.augus...@polytechnique.org> wrote:
Surprisingly, it seems that there isn’t a backwards compatibility
problem with changing the type to lists, as the following pattern
still works:
# myproject/settings.py
from django.conf.global_settings import FILE_UPLOAD_HANDLERS
FILE_UPLOAD_HANDLERS +=
('myproject.uploadhandler.FooBarUploadHandler',)
Proof:
foo = ['abc']
foo += ('def',)
foo
['abc', ‘def’]
Well, technically, there is a potential backward incompatibility: +=
for lists is a synonym for .extend().
Proof:
>>> a = [1,2,3]
>>> b = a
>>> b += (4,)
>>> a
[1, 2, 3, 4]
>>> b
[1, 2, 3, 4]
>>> a = (1,2,3)
>>> b = a
>>> b += (4,)
>>> a
(1, 2, 3)
>>> b
(1, 2, 3, 4)
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