Dict Methods and Functions (STSCI 4060)

dict.keys()

Returns a list of dictionary keys of dict_keys type

dict.values()

Returns a list of dictionary values of dict_values type

dict.get(key, default)

For a given key, returns the value of the key or default if key not in dictionary

dict.items()

Returns a list of dict's tuple pairs (key, value)

dict.update(dict2)

Adds dictionary dict2's key:value pairs to dict

dict.fromkeys(seq, value)

Create a new dictionary with keys from seq (can be a list, tuple, set, string (seperates characters), range) and values set to value

dict.setdefault(key, default)

Similar to get(), but will set dict[key]=default if key is not already in dict

dict.copy()

Returns a copy of dictionary dict (the content of the dictionary is not copied by value, but just creates a new reference)

dict.clear

Removes all elements of dictionary dict

len(dict)

Returns the total length (or size) of the dictionary

str(dict)

Produces a printable string representation of a dictionary