Wait a secound, you are doing some very strange things....
I didn't see this before.
You have defined the following:
@register.simple_tag
def do_cost( name, avn, avd, *args, **kwargs ):
avn = kwargs['avn']
avd = kwargs['avd']
name = kwargs['name']
return name
The method has 3 parameters that you are sending to it - name, avn and avd.
They correspond to the values sent to the method in order. So you don't
need to use the kwargs dictionary - it's unnecessary...
You could just write:
@register.simple_tag
def do_cost( name, avn, avd, *args, **kwargs ):
return name
Beacause you have sent the name to the method?
Regards,
Andréas
Den ons 22 aug. 2018 kl 16:09 skrev MikeKJ <mike.jo...@paston.co.uk>:
> Thank you Andreas Kuhne, progress
>
>
> So this {% load get_cost %}{% do_cost b.name avn avd %} was working quite
> happily but for some reason is now complaining
>
> Exception Type: TemplateSyntaxError
> Exception Value:
>
> Caught KeyError while rendering: 'avn'
>
>
> Exception Location claims to be get_cost.py in do_cost, line 10 which
> is avn = kwargs['avn']
>
> but the exception is in the template line {% load get_cost %}{% do_cost
> b.name avn avd %}
>
>
>
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