Answer for Changing the column order

https://365datascience.com/dwqa-answer/answer-for-changing-the-column-order/ -

Hi Pinky!

Thanks for reaching out.

Oftentimes, people get to this error message in case they haven’t executed all codes cells from the exercise in the consecutive order suggested in the lectures from the course. That’s why restarting the kernel and re-running all code cells consecutively, starting from the top, usually solves this problem.

In case this doesn’t help, can you please share your Notebook Document, so that we can look into it? Please send it to martin@365datascience.com. Thank you.

Hope this helps.
Best,
Martin

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