List of lists does not pass validation

[hazardsy]

I am trying to use a list of list of floats in my code, but I can't seem to pass the marshmallow validation, no matter what schema I try.
The following code looks to me like it should work, but somehow doesn't, is it an issue on my part ?

class FAQPostInput(Schema):
    location = fields.List(fields.List(fields.Float))

    class Meta:
        strict = True

Input :

data = {
    "location": [
        [0.2, 0.3, 0.4]
    ]
}

Thanks for your answers !

[deckar01]

When I tested this by running FAQPostInput().dump(data), it produced {'location': [[0.2, 0.3, 0.4]]} using both marshmallow 2.15.3 and and 3.0.0b12.

[lafrech]

I guess he's using 2.x since he uses strict.

Indeed, this passes with both 2.x and 3 beta:

from marshmallow import Schema, fields

class FAQPostInput(Schema):
    location = fields.List(fields.List(fields.Float))

data = {
    "location": [
        [0.2, 0.3, 0.4]
    ]
}

print(FAQPostInput().dump(data))
print(FAQPostInput().load(data))

2.x:

MarshalResult(data={'location': [[0.2, 0.3, 0.4]]}, errors={})
UnmarshalResult(data={'location': [[0.2, 0.3, 0.4]]}, errors={})

3b:

{'location': [[0.2, 0.3, 0.4]]}
{'location': [[0.2, 0.3, 0.4]]}

[hazardsy]

Actually the issue came from the way I constructed my HTTP request and not from marshmallow itself.
Thanks for your answers !