CBSE 2026 results are out, Mukul scored a perfect 100/100 in Computer ScienceSee all toppers →

KwickClips Python · 43 sec · free

How do you add a Total column?

Short answer. Add the subject columns together; Pandas does it row by row with no loop.

Why save with index=False?

Otherwise the index becomes an extra unnamed column in the file.

Remember

Read, filter, then save
Use index=False when saving

Can Pandas find toppers and save them? Yes. Read marks, which has a Total column. Keep rows with Total at least one fifty. Save as top dot C S V, without the index. Two rules. Read, filter, save. Use index equals False.

This clip is from the full lesson: Importing and Exporting CSV with Pandas — 8 minutes, with the tables, the quick answers and the whole lesson in text.

Useful for: CBSE Class 12 Informatics Practices (065), CBSE Class 12 Informatics Practices (065), CBSE Class 12 Artificial Intelligence (843)

More KwickClips from this lesson

Voice-over is AI-generated; the script is written and checked by Kajal Ma'am. Confirm anything you plan around against your official board document. We never ask for a password or an OTP.

Want a plan that actually fits your board dates?

Ask Kajal Ma'am directly, 20+ years teaching computer science. Free demo class first, no payment.

Talk to Kajal Ma'am on WhatsApp

Or see the Class 12 Computer Science course →

Studying outside India?

We coach CBSE, IGCSE & international students across the globe, one-to-one, in your local time zone.

Visit International →