Allow marshmallow version greater than 3

[rambobinator]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 74

• 6 of 6 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 59:	0.0%
Covered Lines:	363
Relevant Lines:	363

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💛 - Coveralls

[ramnes]

Definitely want this in, just without having everything redefined twice. Please just put the difference between the two versions outside the function. 👍

[rambobinator]

@trubesv What do you mean ?
It will then raise a marshmallow validation exception, which is catched by this decorator.

[rambobinator]

That's right, @ramnes maybe we should stick to marshmallow version to <3 in requirements ?

[rambobinator]

There is a compatible release operator that may be used here:
marshmallow ~= 2.15.4
Is it ok for you ?

[ramnes]

As of now, nothing is done when there are extra fields in the payload so the requests go through, but if you update to our next release containing the bump to Marshmallow >3, you will get 400s in those cases :)

This is a non-issue because Flask-Stupe does not have any install requirement else than Flask. See setup.py (requirements.txt is just used for development). What this mean is that even if you update to our next release, that won't update Marshmallow by itself, and thus this MR is not a breaking change. It just adds support for another Marshmallow version.