Python Dictionary Exercise Last Updated : 01 Oct, 2021 Comments Improve Suggest changes Like Article Like Report Basic Dictionary ProgramsPython | Sort Python Dictionaries by Key or ValueHandling missing keys in Python dictionariesPython dictionary with keys having multiple inputsPython program to find the sum of all items in a dictionaryPython program to find the size of a DictionaryWays to sort list of dictionaries by values in Python – Using itemgetterWays to sort list of dictionaries by values in Python – Using lambda functionPython | Merging two DictionariesProgram to create grade calculator in PythonPython - Insertion at the beginning in OrderedDictPython | Check order of character in string using OrderedDict( )Python | Find common elements in three sorted arrays by dictionary intersectionDictionary and counter in Python to find winner of electionPython – Key with maximum unique valuesFind all duplicate characters in stringPython – Group Similar items to Dictionary Values ListK’th Non-repeating Character in Python using List Comprehension and OrderedDictPython - Replace String by Kth Dictionary valuePython | Ways to remove a key from dictionaryPython – Replace words from DictionaryPython - Remove Dictionary Key WordsPython | Remove all duplicates words from a given sentencePython – Remove duplicate values across Dictionary ValuesPython Dictionary to find mirror characters in a stringCounting the frequencies in a list using dictionary in PythonPython – Dictionary Values MeanPython counter and dictionary intersection example (Make a string using deletion and rearrangement)Python dictionary, set and counter to check if frequencies can become sameScraping And Finding Ordered Words In A Dictionary using PythonPossible Words using given characters in PythonPython - Maximum record value key in dictionaryPython – Extract values of Particular Key in Nested ValuesConversion of dictionaryPython - Convert Key-Value list Dictionary to List of ListsPython - Convert List to List of dictionariesPython - Convert Lists of List to DictionaryPython - Convert List of Dictionaries to List of ListsPython - Convert key-values list to flat dictionaryPython | Convert a list of Tuples into DictionaryPython – Convert Nested dictionary to Mapped TuplePython Program to convert string to dictionaryPython – Convert dictionary to K sized dictionariesPython – Convert Matrix to dictionaryAdvance Dictionary ProgramsPython – Create Nested Dictionary using given ListPython – Swapping Hierarchy in Nested DictionariesPython – Inversion in nested dictionaryPython – Reverse Dictionary Keys OrderPython – Extract Key’s Value, if Key Present in List and DictionaryPython – Remove keys with Values Greater than K ( Including mixed values )Python – Remove keys with substring valuesPython – Dictionary with maximum count of pairsPython - Append Dictionary Keys and Values ( In order ) in dictionaryPython - Extract Unique values dictionary valuesPython - Keys associated with Values in DictionaryPython - Filter dictionary values in heterogeneous dictionaryPrint anagrams together in Python using List and DictionaryCheck if binary representations of two numbers are anagramPython Counter to find the size of largest subset of anagram wordCount of groups having largest size while grouping according to sum of its digitsPython - Sort Dictionary key and values ListPython – Sort Dictionary by Values SummationPython – Sort dictionaries list by Key’s Value list indexPython – Sort Nested keys by ValuePython – Scoring Matrix using DictionaryPython – Factors Frequency DictionaryCount distinct substrings of a string using Rabin Karp algorithmPython program to build an undirected graph and finding shortest path using DictionariesLRU Cache in Python using OrderedDict Comment More infoAdvertise with us Next Article Python Dictionary Exercise abhishek1 Follow Improve Article Tags : Python Python dictionary-programs Practice Tags : python Similar Reads How to Add Values to Dictionary in Python The task of adding values to a dictionary in Python involves inserting new key-value pairs or modifying existing ones. A dictionary stores data in key-value pairs, where each key must be unique. Adding values allows us to expand or update the dictionary's contents, enabling dynamic manipulation of d 3 min read Add new keys to a dictionary in Python In this article, we will explore various methods to add new keys to a dictionary in Python. Let's explore them with examples:Using Assignment Operator (=)The simplest way to add a new key is by using assignment operator (=).Pythond = {"a": 1, "b": 2} d["c"] = 3 print(d)Output{'a': 1, 'b': 2, 'c': 3} 2 min read Add Item after Given Key in Dictionary - Python The task of adding an item after a specific key in a Pythondictionary involves modifying the order of the dictionary's key-value pairs. Since Python dictionaries maintain the insertion order, we can achieve this by carefully placing the new key-value pair after the target key. For example, consider 4 min read Python - Ways to remove a key from dictionary We are given a dictionary and our task is to remove a specific key from it. For example, if we have the dictionary d = {"a": 1, "b": 2, "c": 3}, then after removing the key "b", the output will be {'a': 1, 'c': 3}.Using pop()pop() method removes a specific key from the dictionary and returns its cor 3 min read Removing Dictionary from List of Dictionaries - Python We are given a list of dictionaries, and our task is to remove specific dictionaries based on a condition. For instance given the list: a = [{'x': 10, 'y': 20}, {'x': 30, 'y': 40}, {'x': 50, 'y': 60}], we might want to remove the dictionary where 'x' equals 30 then the output will be [{'x': 10, 'y': 3 min read Python - Remove item from dictionary when key is unknown We are given a dictionary we need to remove the item or the value of key which is unknown. For example, we are given a dictionary a = {'a': 10, 'b': 20, 'c': 30} we need to remove the key 'b' so that the output dictionary becomes like {'a': 10, 'c': 30} . To do this we can use various method and app 4 min read Python - Test if all Values are Same in Dictionary Given a dictionary, test if all its values are the same. Input : test_dict = {"Gfg" : 8, "is" : 8, "Best" : 8} Output : True Explanation : All element values are same, 8. Input : test_dict = {"Gfg" : 8, "is" : 8, "Best" : 9} Output : False Explanation : All element values not same. Method #1: Using 7 min read Python | Test if element is dictionary value Sometimes, while working with a Python dictionary, we have a specific use case in which we just need to find if a particular value is present in the dictionary as it's any key's value. This can have use cases in any field of programming one can think of. Let's discuss certain ways in which this prob 4 min read Why is iterating over a dictionary slow in Python? In this article, we are going to discuss why is iterating over a dict so slow in Python? Before coming to any conclusion lets have a look at the performance difference between NumPy arrays and dictionaries in python: Python # import modules import numpy as np import sys # compute numpy performance d 3 min read Iterate over a dictionary in Python In this article, we will cover How to Iterate Through a Dictionary in Python. To Loop through values in a dictionary you can use built-in methods like values(), items() or even directly iterate over the dictionary to access values with keys.How to Loop Through a Dictionary in PythonThere are multipl 6 min read Like