Pandas to dict use column as key. Sep 30, 2022 · In this section, you’ll learn how to convert a Pandas DataFrame to a dictionary where the indices are the keys and the values are a dictionary of column names and record values. . So the final answer should be df. We focused on extraction in these code snippets, but exploding and splitting is very similar. Dec 27, 2018 · A one-liner without side-effects is better. to_dict (). to_dict() Convert a DataFrame to JSON format. And also you have an error; it should be df ['B']. Mar 18, 2023 · In this article, we looked at different solutions for extraction and explosion of dictionary columns in Pandas. You can also specify the mapping type. set_index('ID')['B']. com Jul 11, 2025 · Example 2: In this example, we convert the DataFrame into a list of dictionaries, where each dictionary represents a row with column names as keys. You can specify the return orientation. If you want a defaultdict, you need to initialize it: See full list on sparkbyexamples. Given a Pandas DataFrame with at least two columns, we want to select one column to serve as the keys for our new dictionary and another column to serve as the values. vcy beupi teofl fuanpa filji nyszv jvzhna kxk qiwfio vryuzy