Sorry, my mistake. The method should take just one argument like this:
@validate('notebook_dir')
def _validate_notebook_dir(self, proposal):
value = proposal['value']
...
On 15 August 2017 at 15:50, Craig Ching <[email protected]> wrote:
> Hi takowl!
>
> Thanks much for your help!
>
> On Monday, August 14, 2017 at 4:43:04 AM UTC-5, takowl wrote:
>>
>>
>> from traitlets import validate
>>
>> class MySpawner(LocalProcessSpawner):
>> @validate('notebook_dir')
>> def _notebook_dir_validate(self, value, trait):
>> ...
>>
>>
> I've done that, but now I'm getting:
>
> TypeError: _notebook_dir_validate() missing 1 required positional
> argument: 'trait'
>
> I've tried looking through the source code to see if I have the arguments
> defined correctly, but I'm afraid I'm not that strong at Python yet.
>
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