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'Form' object has no attribute 'render'

I'd like to use a non-interactive form, but after setting the only_render flag to yes as described in the manual on custom forms ( I receive the following error:

exception type: AttributeError
exception message: 'Form' object has no attribute 'render'

The only related discussion I found on the forum was about the same error with the mousetrap plugin (, which suggested that forms were reworked in 3.2 (I'm on 3.2.5) - is only_render now deprecated for forms and the documentation just hasn't caught up, or is something else going on?


  • Hi,

    It's a bug in OpenSesame, which was indeed introduced when forms were reworked in 3.2. For now, you can workaround it by setting the timeout to 0 milliseconds. So instead of set only_render yes, you would use set timeout 0. For all practical purposes, this should have the same effect.


    There's much bigger issues in the world, I know. But I first have to take care of the world I know.

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