[Tutor] Dictionary Error: 'dict' object has noattribute '_contains_'

[Kent Johnson]

Alan Gauld wrote:
>> But you normally shouldn't call this directly, you should write
>>  "test" in menu_specials
> 
> 
> Now howzabout that! Yet another new trick learnt.
> When did 'in' start working with dictionaries?

Oh, about four years ago :-) in Python 2.2

You really should read the "What's New in Python x.x" docs ;)

Kent

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