Classes

Seymore4Head Seymore4Head at Hotmail.invalid
Fri Oct 31 15:07:20 CET 2014


On Fri, 31 Oct 2014 09:59:30 GMT, alister
<alister.nospam.ware at ntlworld.com> wrote:

>On Thu, 30 Oct 2014 17:34:57 -0400, Seymore4Head wrote:
>
>> On Thu, 30 Oct 2014 14:28:19 -0700, Larry Hudson <orgnut at yahoo.com>
>> wrote:
>> 
>>>On 10/30/2014 01:16 PM, Seymore4Head wrote:
>>>> class pet:
>>>>      def set_age(self,age):
>>>>          self.age=age
>>>>      def get_age(self):
>>>>          return self.age
>>>> pax=pet pax.set_age(4)
>>>>
>>>> Traceback (most recent call last):
>>>>    File "C:\Functions\test.py", line 18, in <module>
>>>>      pax.set_age(4)
>>>> TypeError: set_age() missing 1 required positional argument: 'age'
>>>>
>>>> I am trying to pass 4 as the age.  Obviously I am doing it wrong.
>>>>
>>>You have already received the answer -- pax=pet should be pax=pet(), but
>>>I have a simple side-comment about style.  It is common Python
>>>convention to capitalize class names, IOW make this class Pet instead of
>>>class pet.  This is convention not a requirement, but it does help
>>>distinguish class names from ordinary variable names -- especially to
>>>others reading your code (as well as yourself a few days later).   ;-)
>>>
>>>      -=- Larry -=-
>> 
>> I try to take typing shortcuts and it bites me in the behind.
>> Good suggestion Thanks
>
>If shortcuts were safe and easy they would not be shortcuts they would be 
>the way.
>
>It is best to avoid shortcuts whilst learning untill you know the full 
>implications. you will find your learning goes much smother & faster.

Good advice.



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