10.2: Dictionary Creation
- Page ID
- 117586
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- Create a dictionary object with given key/value pairs.
Dictionary creation
Two methods exist for creating an empty dictionary:
- Using curly braces
{}. Ex:dict_1 = {}. - Using the
dict()function. Ex:dict_2 = dict().
A dictionary object can also be created with initial key-value pairs enclosed in curly braces. Ex: my_dict = {"pizza": 2, "pasta": 3, "drink": 4} creates a dictionary object my_dict. A key and associated value are separated by a colon, and key-value pairs are separated by commas.
my_dict = {}my_dict = []dict() for dictionary creation
A dictionary object can be created with initial key-value pairs using the dict() function.
- Creating a dictionary from a list of tuples.
my_list = [("apple", 2), ("banana", 3), ("orange", 4)] my_dict = dict(my_list) - Creating a dictionary using keyword arguments.
my_dict = dict(apple=2, banana=3, orange=4) - Creating a dictionary from another dictionary.
old_dict = {"apple": 2, "banana": 3, "orange": 4} new_dict = dict(old_dict)
my_dict = dict(key1=value1, key2=value2)my_dict = {key1=value1, key2=value2}Create a dictionary, my_info, with three key-value pairs. The keys should be "first name", "last name", and "age" with the values being corresponding information about yourself. Then, print my_info.