[Tutor] validating decimal class

[Brian Lane]

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qsqgeekyogdty at tiscali.co.uk wrote:
> hello
> silly question, but i can't seem to figure it it.
> 
> I have an object which is:
> 
>>>> type(price)
> <class 'decimal.Decimal'>
> 
> but i can't figure how to validate against it.
> 
>>>> if not isinstance(price, decimal.Decimal):
>           do something...
> 
> how do i ensure that the object 'price' is a decimal?
> 

The above should work (I even tried it to make sure).

But you could also compare it to a known type:

if not type(price) is type(decimal.Decimal(0)):
  print "Not Decimal"


What error are you getting when you try using isinstance()?

Brian

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