How do I get around HttpError 403 Insufficient Permission? (gmail api, python)

Even though the accepted answer is 100% correct. I think it’s worth pointing out that why that’s the case.

When you authorize a gmail service client, you can specify several different scopes: All, compose, labels, etc…

These are all listed here: https://developers.google.com/gmail/api/auth/scopes

The scope mentioned in the answer provides complete gmail access.

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