Python Dictionary

Creating an Empty Dictionary and Adding Data
Print keys and values
Convert the dictionary into list using list function
Creating a Dictionary with Adding Data
Accessing Values by key or get() method.
Add a new item like name and phone number.
Remove any of key (item) using del and pop()
Remove all items using clear()
Copy the dictionary using copy()
Update keys using update()
Nested dictionary
Tuple, number, string as values in a Dictionary
List as a value in a Dictionary
Tuples as Keys due to their immutable property

Methods:
get()-gets a value for a key
keys()-Returns all keys
values()-Returns all values
items()-Returns key-value pairs as tuples
update([])-Updates dictionary with another dictionary
pop()-Removes a key and returns its value
clear()-Removes all items
copy()-Returns a shallow copy

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