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From: Paul Rubin <no.email@nospam.invalid>
Newsgroups: comp.lang.python
Subject: Re: Loop thru the dictionary with tuples
Date: Sun, 25 May 2014 05:59:39 -0700
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Igor Korot <ikorot01@gmail.com> writes:
> for (key,value) in my_dict:
>     #Do some stuff
>
> but I'm getting an error "Too many values to unpack".

Use 
    for (key,value) in mydict.iteritems(): ...
otherwise you loop through just the keys, whicn in your dictionary 
happens to be 3-tuples.  So you try to unpack a 3-tuple to a 2-tuple
and get a too-many-values error.