How to Append a Row to a CSV File Efficiently in Python

Adding a New Row to an Existing CSV File in Python

Expanding upon the question, it's worth exploring alternative approaches to appending a new row to an existing CSV file. The provided method of storing旧CSV data in a list before deleting and recreating the file is adequate but may introduce unnecessary overhead.

An efficient solution lies in utilizing Python's built-in functions for manipulating CSV files. Specifically, we can leverage the a (append) mode when opening the CSV file to add our new row:

<code class="python">with open('document.csv','a') as fd:
    fd.write(myCsvRow)</code>

By opening the file in append mode ('a'), we allow Python to directly write new data to the end of the file, preserving its original contents. This approach is both efficient and prevents the need for intermediate list manipulation.

Employing this technique ensures that your CSV file remains up-to-date with new additions, without compromising the existing data.

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