# Introduction In this tutorial, we will learn about the Python pandas `DataFrame.reindex()` method. We will explore how to change the index and columns of a DataFrame using this method. The `DataFrame.reindex()` method allows us to reconcile the DataFrame with a new index by filling null values in the locations that have no value in the previous index. ## VM Tips After the VM startup is done, click the top left corner to switch to the **Notebook** tab to access Jupyter Notebook for practice. Sometimes, you may need to wait a few seconds for Jupyter Notebook to finish loading. The validation of operations cannot be automated because of limitations in Jupyter Notebook. If you face issues during learning, feel free to ask Labby. Provide feedback after the session, and we will promptly resolve the problem for you.
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