Django: Better Error Messages, Clearer Exceptions

Django merged a rework of email validation that makes error messages more specific and extensible, while a separate pull request improves the guidance developers get when hitting synchronous-only database errors. Both changes are about giving developers clearer, more actionable feedback when something goes wrong.

Duration: PT2M11S

Episode overview

This episode is a short developer briefing from Django.

It explains recent repository work in plain language.

  • Show: Django
  • Published: 2026-09-15T13:05:43Z
  • Audio duration: PT2M11S

Transcript excerpt

This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.

Good day, and welcome to Django, your developer briefing for September 15th, 2026.

The thread running through today's activity is diagnostic clarity — making Django tell you exactly what went wrong and how to fix it, rather than leaving you to guess.

The headline item is pull request 21736 from Natalia, merged yesterday, which reworks the email validator. Previously, if an email address failed validation, you got a generic error. Now, the validator includes the specific username or domain that failed directly in the error's parameters, so your error messages can…

The second theme is exception clarity around the ORM. Pull request 21973, opened by Arfey, adjusts the error raised when code tries to fetch a related object synchronously in an async context. Instead of just failing, the exception now points developers toward using select-related or prefetch-related to fix the…

What's next: watch for pull request 21973 to land, since it directly affects async ORM debugging. And if you maintain custom validators built on Django's email validator, review the new overridable methods before the deprecated one is removed.

That's the briefing for today. Back tomorrow with more from the Django…

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