Splunk 10.2 Python 3.13 for splunkd

Available Languages

Updated:October 1, 2026
Document ID:SPLK053254

Bias-Free Language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

Applicability

Splunk Enterprise 10.2 Splunk Cloud 10.2

Description

In Splunk 10.0, the Python 3.7 (and 2.7) runtimes were removed leaving Python 3.9 as the only supported runtime. Starting with Splunk 10.2, an additional optionally selectable Python 3.13, has been added. Each Splunk app can independently opt in to Python 3.13 and must be updated to ensure compatibility. 

Affected Parties: Any Splunk user utilizing apps that have proactively migrated to Python 3.13 


Investigation

Splunk has two different interpreter models that operate independently:

  1. splunkd-controlled interpreter model
  2. SplunkWeb interpreter model (For more information refer to article Splunk 10.2 Python 3.13 for Splunk Web )

    splunkd-controlled interpreter model 

Controls: 

modular inputs 

custom search commands 

REST handlers 

Behavior: 

Uses python.required during the Adoption Phase 

Follows the dual-interpreter model documented in the Python 3.13 PRD and Developer Guide 

Supports both 3.9 (default) and 3.13 (opt-in) 



Splunk 10.2 will introduce a Python 3.13 runtime, the default Python runtime will remain Python 3.9.

Only developers who opt into Python 3.13  can run into compatibility issues at this point in time.

 


Resolution

To migrate to Python 3.13, app developers will have to indicate a required Python runtime using the `python.required` configuration setting.

Splunk users can mitigate observed breakage by using the `python.required` flag to roll apps back to Python 3.9


About upgrading to 10.2 READ THIS FIRST

Revision History

Revision Publish Date Comments
1.0
01-Oct-2026
Initial Release

Was this Document Helpful?

FeedbackFeedback

Contact Cisco

This Document Applies to These Products