"Attribute Doesnt Exist" ... but.... it does :-s

[Robert Bossy]

Robert Rawlins wrote:
>
> Hello Guys,
>
> I’ve got an awfully aggravating problem which is causing some 
> substantial hair loss this afternoon J I want to get your ideas on 
> this. I am trying to invoke a particular method in one of my classes, 
> and I’m getting a runtime error which is telling me the attribute does 
> not exist.
>
> I’m calling the method from within __init__ yet it still seems to 
> think it doesn’t exist.
>
> Code:
>
> # Define the RemoteDevice class.
>
> class *remote_device*:
>
> # I'm the class constructor method.
>
> def *__init__*(/self/, message_list=/""/):
>
> /self/.set_pending_list(message_list)
>
> def *set_pending_list*(/self/, pending_list):
>
> # Set the message list property.
>
> /self/.pending_list = message_list
>
> And the error message which I receive during the instantiation of the 
> class:
>
> File: “/path/to/my/files/remote_device.py", line 22, in __init__
>
> self.set_pending_list(message_list)
>
> AttributeError: remote_device instance has no attribute 'set_pending_list'
>
> Does anyone have the slightest idea why this might be happening? I can 
> see that the code DOES have that method in it, I also know that I 
> don’t get any compile time errors so that should be fine. I know it 
> mentions line 22 in the error, but I’ve chopped out a load of non 
> relevant code for the sake of posting here.
>
Hi,
I don't get this error if I run your code. Maybe the irrelevant code 
causes the error: my guess is that there's a parenthesis mismatch or an 
undeindented line.

Btw, calls to set_pending_list will fail since the name "message_list" 
is not defined in its scope. Please follow Chris Mellon's advice.

Cheers,
RB