[Tutor] Remove a dictionary entry

[M. 427]

Thank you,
After reading the following documentations
http://docs.python.org/tutorial/datastructures.html#looping-techniques
http://docs.python.org/tutorial/controlflow.html#for-statements
I ended up with this :

Version 3 :
for i,row in d[:].iteritems() : # BUG : TypeError: unhashable type
    if len(row) < 2 :
        del d[i]

Still buggy... Any lead for this error message? Is a slice unhashable?
Am I looking in the right direction for this task?

Mr. 427

Le vendredi 17 septembre 2010 à 20:50 -0400, bob gailer a écrit :
> Please always reply-all so a copy goes to the tutor list.
> 
> On 9/17/2010 6:20 PM, M. 427 wrote: 
> > Thank you very much for your answer.
> > I wanted to know the pythonic way of doing this, so I did not post my
> > buggy trial which was :
> > 
> > version 1 :
> > for row in d : 
> >   if len(row) == 1 :
> >     del row # WRONG
> > 
> > Version 2 :
> > for i,row in d : 
> >   if len(row) == 1 :
> >     del d(i) # BUG : Syntax error
> 
> Thank you for posting code. In the future do so initially. It helps us
> know where to help.
> 
> It looks like you learned from version 1. 
> 
> When you get a syntax error check the manual. When you look at del in:
> Python v2.6.4 documentation - The Python Standard Library - 6.8
> Mapping Type - dict
> you will see d[key] - compare that to what you wrote in version 2.
> 
> -- 
> Bob Gailer
> 919-636-4239
> Chapel Hill NC