Appending New Rows to Existing CSV Files in Python: A More Efficient Approach

When you need to update a CSV file with additional rows, you might consider the following question:

Q: Is it possible to add new rows to an existing CSV file without the hassle of overwriting and recreating the file?

A: Absolutely! Here's a more efficient way to append rows to your CSV file:

Instead of relying on a cumbersome process of storing old rows, deleting the file, and rebuilding it with the updated list, you can leverage the power of the with statement in Python.

The following code snippet illustrates this technique:

with open('document.csv', 'a') as fd:
    fd.write(myCsvRow)

By opening the file with the 'a' parameter, you can append to the end of the file rather than erasing its existing contents. This streamlines the process and makes it more efficient. Say goodbye to the unnecessary steps of managing and overwriting the file!