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Re: Loop thru the dictionary with tuples

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  Re: Loop thru the dictionary with tuples Dave Angel <davea@davea.name> - 2014-05-25 22:09 -0400

#72042 — Re: Loop thru the dictionary with tuples

Ned Batchelder <ned@nedbatchelder.com> Wrote in message:
> On 5/25/14 8:55 AM, Igor Korot wrote:
>> Hi, ALL,
>> I have a following data structure:
>>
>> my_dict[(var1,var2,var3)] = None
>> my_dict[(var4,var5,var6)] = 'abc'
>>
>> What I'm trying to do is this:
>>
>> for (key,value) in my_dict:
>>      #Do some stuff
>>
>> but I'm getting an error "Too many values to unpack".
>>
>> What am I doing wrong?
>>
>> Thank you.
>>
> 
> You want:
> 
>      for key, value in my_dict.items():  # or .iteritems()
> 
> Iterating over a dictionary gives you its keys.  items() will give you 
> key,value pairs.


Or, if the dict is large,  you might want

for key in my_dict:
    value = my_dict [key]
    ...


-- 
DaveA

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