![]() In the above example, `dict1` and `dict2` are merged using the `dict()` constructor. It takes an iterable of key-value pairs and creates a new dictionary. The `dict()` constructor can also be used to merge dictionaries. This creates a new dictionary containing all the key-value pairs from both dictionaries. In the above example, the double asterisk operator is used to merge `dict1` and `dict2` into `merged_dict`. This operator, also known as the "unpacking" operator, allows you to expand a dictionary into keyword arguments. Python provides a concise way to merge dictionaries using the double asterisk (**) operator. Method 2: Using the Double Asterisk (**) Operator The result is stored in `dict1`, which now contains all the key-value pairs from both dictionaries. In the above example, `dict1` is merged with `dict2` using the `update()` method. It takes another dictionary as an argument and adds its key-value pairs to the original dictionary. Print the concatenated dictionary using the dict() function to convert the defaultdict object to a regular dictionary, and the print() function to display the resulting dictionary.The `update()` method allows you to merge one dictionary into another.If the key does not exist in the result dictionary, it will be created and initialized as an empty list. Append each integer in the value list to the corresponding key in the result dictionary.The loop variable j will be used to index each integer in the list. ![]() Within the nested for loop, use another for loop to iterate over each integer in the value list.The loop variables key and value will be used to store the key and value pairs of the dictionary being iterated over. Use a nested for loop to iterate over each key-value pair in the current dictionary.Within the for loop, assign the current dictionary being iterated over to the variable current.The loop variable i will be used to index each dictionary in the list. Use a for loop to iterate over each dictionary in the test_list.Create an empty defaultdict object called result, which will be used to store the concatenated dictionary.Print the original list using the print() function.Each key represents a string, and each value is a list of integers. Define a list of dictionaries called test_list, where each dictionary contains keys and values.Import the defaultdict module from the collections library.Finally, it prints the original list and the concatenated dictionary.įollow the below steps to implement the above idea: It then iterates over each dictionary in the input list, and for each key-value pair in each dictionary, appends the value to the corresponding key in the result dictionary. It first initializes an empty defaultdict object, result, which will store the concatenated dictionary. This program creates a concatenated dictionary from a list of dictionaries. Software Engineering Interview Questions.Top 10 System Design Interview Questions and Answers.Top 20 Puzzles Commonly Asked During SDE Interviews.Commonly Asked Data Structure Interview Questions.Top 10 algorithms in Interview Questions.Top 20 Dynamic Programming Interview Questions.Top 20 Hashing Technique based Interview Questions.Top 50 Dynamic Programming (DP) Problems.Top 20 Greedy Algorithms Interview Questions.Top 100 DSA Interview Questions Topic-wise.
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