Incorrect validation error for animate args info array

[jonmmease]

See #1240 (comment)

These button.args assignments are valid, but raise validation errors as of 3.4.0

import plotly.graph_objs as go
button = go.layout.updatemenu.Button()
button.method = 'animate'
button.args = [['frame1', 'frame2']]
button.args = [['frame1', 'frame2'], {'frame': [{'duration': 1500}, {'duration': 500}]}]

[jonmmease]

Closed by #1267. @saebaxp, could you give the 3.4.1 release candidate a try and confirm that it fixes the issue for you? Installation instructions for the release candidate at https://github.com/plotly/plotly.py/tree/release_3.4.1

Thanks again for taking the time to to report this!

[saebaxp]

@jonmmease Thanks for the prompt fix.

Just tried comparing between 3.4.0 and 3.4.1rc.

With 3.4.0 I got ValueError:

ValueError: 
    Invalid value of type 'builtins.list' received for the 'args' property of layout.slider.step
        Received value: [['0'], {'frame': {'duration': 500.0, 'easing': 'linear', 'redraw': False}, 'transition': {'duration': 0, 'easing': 'linear'}}]

    The 'args' property is an info array that may be specified as:

    * a list or tuple of up to 3 elements where:
(0) The 'args[0]' property accepts values of any type
(1) The 'args[1]' property accepts values of any type
(2) The 'args[2]' property accepts values of any type

With 3.4.1rc the error is gone and animation works as expected.
So the issue is fixed, at least for my case.

Thanks again!

[jonmmease]

Great! Thanks for giving the release candidate a try and reporting back.