# Error HTTP 404 in Python extension 2.0

**URL:** <https://community.dynatrace.com/t/error-http-404-in-python-extension-2-0/50274>\
**Category:** Extensions\
**Tags:** extensions\
**Created:** [February 14, 2025, 3:16pm UTC](https://community.dynatrace.com/t/error-http-404-in-python-extension-2-0/50274 "2025-02-14T15:16:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Eyad](https://avatars.discourse-cdn.com/v4/letter/e/c57346/32.png) [@Eyad](https://community.dynatrace.com/u/Eyad)\
**Post date:** [February 14, 2025, 3:16pm UTC](https://community.dynatrace.com/t/error-http-404-in-python-extension-2-0/50274/1 "2025-02-14T15:16:52Z")

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I am getting an error message.

 ![Screenshot 2025-02-14 101309.png](https://global.discourse-cdn.com/dynatrace/original/2X/9/9e0b7739c95abda3cca5421d2fe857280570bdf1.png)

and when i check&nbsp;python3\_fastcheck.log  
2025-02-12 14:30:16,313 [WARNING] api (MainThread): Error HTTP 404 from h ttp://\*\*\*\*\*\*\*\*\*\*\*\*/\*\*\*\*\*\*\*/\*\*\*\*\*\*?feature\_sets\_json: b’Request send from non-python DataSource or feature sets are not present i n extension.yaml’

any thought or solutions?

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**Author:** ![AntonioSousa](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/antoniosousa/32/50_2.png) [@AntonioSousa](https://community.dynatrace.com/u/AntonioSousa)\
**Post date:** [February 14, 2025, 4:12pm UTC](https://community.dynatrace.com/t/error-http-404-in-python-extension-2-0/50274/2 "2025-02-14T16:12:15Z")

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[@Eyad](https://community.dynatrace.com/user/86227),

You can ignore that 404, as Mike stated in  
[https://community.dynatrace.com/t5/Extensions/AUTHENTICATION-ERROR-in-extensions-v2/m-p/242797](https://community.dynatrace.com/post/242797)