Using default a empty dictionary as a default value

SER.RI-TIC-Alexis Roda alexis.roda at urv.net
Tue Mar 22 11:54:31 CET 2005


C Gillespie wrote:
> Dear All,
> I ran my code through pylint to clean it up and one of the (many) errors it
> through up was
> Dangerous default value {} as argument
> Bascially, I have:
> 
> class NewClass:
>     def __init__(self,  myDict={}):
>         for key, value in myDict:
>             print key, value
> 
> Obviously, this is not the way it should be done. Should I have a default
> value of None for myDict and test for it? Or is there some other way?

Take a look at:

http://www.python.org/doc/2.4/tut/node6.html#SECTION006710000000000000000

look for "Important warning"


HTH
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<>               Ojo por ojo y el mundo acabara ciego
/\ Alexis Roda - Universitat Rovira i Virgili - Reus, Tarragona (Spain)
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