Whenever we talk about storing data in the form of key-value pair in python, the data structure that comes first into mind is a python dictionary.If you come from a JAVA background, you must be familiar with hash maps and hash tables. With the help of some examples, we will also modify the nested dictionary elements. One is to fetch associated value for each key in keys() list. your coworkers to find and share information. Categories Technology Tags Add element to a Nested Dictionary, Create Nested Dictionary, Loop through a Nested Dictionary in Python, Python Nested Dictionary Post navigation. In the above example, we are checking each value if it is a dictionary, if YES then we iterate through the value using nested for loop to print key: value pairs else we directly print them. See the source code below to understand how it works. Painful Truths of Life. How to recursively iterate a nested Python dictionary? Merge two Nested Dictionary. Alternatively, we might only need to loop over the values: for value in dictionary.values(). As it turns out, there are few ways to get it done. In this post we will take a deep dive into dictionaries and ways to iterate over dictionary and find out how to sort a dictionary values and other operations using dictionary data structure There are two ways of iterating through a Python dictionary object. # Iterate over the keys in dictionary, access value & print line by line for key in student_score: print(key, ' : ', student_score[key]) Output: A python Dictionary is one of the important data structure which is extensively used in data science and elsewhere when you want to store the data as a key-value pair. Iterating through nested lists / dictionaries using Jinja2 templates , I'm trying to iterate through either a nested list, dictionary, or combination of the two using a Jinja2 template. Print a dictionary line by line by iterating over keys. This kind of problem can occur in web development domain. There are multiple ways to iterate over a dictionary in Python. If we want to store information in a structured way, creating a nested dictionary in python can be one of the better options. Code faster with the Kite plugin for your code editor, featuring Line-of-Code Completions and cloudless processing. Dictionary in Python with Examples. Dictionary in Python is an unordered collection of data values, used to store data values like a map, which unlike other Data Types that hold only single value as an element, Dictionary holds key:value pair.. We can iterate over the keys of a dictionary one by one, then for each key access its value and print in a separate line i.e. First, we could loop over the keys directly: for key in dictionary. While working with dictionary, we can have a case in which we need to iterate through the lists, which are in the keys of dictionaries. 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