Dictionaries
Explore Python dictionaries by creating key-value pairs and accessing elements using loops. Understand how to work with nested dictionaries and ordered dictionaries for better data organization. This lesson helps you get comfortable managing dictionary data structures in Python coding.
Dictionaries
Dictionaries are data structures that index values by a given key (key-value pairs).
Dictionaries are written with curly brackets {}, and they have keys and values.
The general syntax for creating a dictionary is:
DictionaryName {
key1: value1,
key2: value2,
.
.
.
keyN: valueN,
}
Every key in a dictionary must be unique so that we know which value to return for a given key; however, dictionaries are NOT sorted. What makes dictionaries useful is that we assign a key to each value, instead of a numerical index like we do for a list. ...