dictionaries - returning a key from a value

[Michael Malinowski]

Appologies if this is a somewhat simple question, but currently I can return
a value from a dictionary using its key by doing :

 

 dDictionary.get( key )

 

However, I am curious to know if its possible to get the key from giving a
value (basically the opposite of what I did above, instead of getting a
value from a key, I want the key from a value). Is there a way of doing
this? Or would I need to cycle all the keys until I hit a value match (which
seems somewhat cumbersome). 

 

Cheers

Mike. 

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