A dictionary maps keys to values allowing efficient retrieval of values by keys.
I am a bit puzzled by the following code: d = {'x': 1, 'y': 2, 'z': 3} for key in d: print key, 'corresponds …
python python-2.7 dictionaryI wanted to test if a key exists in a dictionary before updating the value for the key. I wrote …
python dictionaryIs it possible to add a key to a Python dictionary after it has been created? It doesn't seem to …
python dictionary lookupI have a dictionary of values read from two fields in a database: a string field and a numeric field. …
python sorting dictionaryIf I have an object implementing the Map interface in Java and I wish to iterate over every pair contained …
java dictionary collections iterationI have two Python dictionaries, and I want to write a single expression that returns these two dictionaries, merged (i.…
python dictionary mergeIs there a simple way to determine if a variable is a list, dictionary, or something else? I am getting …
python dictionary types typeofIs there a way to delete an item from a dictionary in Python? Additionally, how can I delete an item …
python dictionary delI've seen a few different ways to iterate over a dictionary in C#. Is there a standard way?
c# dictionary loopsWhen deleting a key from a dictionary, I use: if 'key' in my_dict: del my_dict['key'] Is there …
python dictionary data-structures unset