Accessing elements of python dictionary

Questions

Consider a dict like

dict = {
   Apple : { American : 16 ,  Mexican :10,  Chinese :5},
   Grapes :{ Arabian : 25 , Indian : 20 } }

How do I access for instance a particular element of this dictionary ? for instance I would like to print first element after some formatting the first element of Apple which in our case is American only ?

Additional information The above data structure was created by parsing an input file in a python function. Once created however it remains the same for that run.

I am using this data structure in my function.

So if the file changes, the next time this application is run the contents of file are different and hence the contents of this data structure will be different but the format would be same. So you see I in my function I don t know that the first element in Apple is American or anything else so I can t directly use American as a key

Answers

Given that it is a dictionary you access it by using the keys. Getting the dictionary stored under "Apples", do the following:

>>> dict["Apple"]
{ American :  16 ,  Mexican : 10,  Chinese : 5}

And getting how many of them are American (16), do like this:

>>> dict["Apple"]["American"]
 16 

Source

License : cc by-sa 3.0

http://stackoverflow.com/questions/5404665/accessing-elements-of-python-dictionary

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