fix: support typing.Self on Python 3.10 via typing_extensions

[aryanputta]

Summary

Fixes #8322 — ImportError when running python3 -m dynamo.frontend on Python 3.10.

• typing.Self was introduced in Python 3.11 (PEP 673)
• config_base.py imported it unconditionally from typing, crashing on Python 3.10
• Fix: guard with sys.version_info >= (3, 11), fall back to typing_extensions.Self which is already a transitive dependency via pydantic

Change:

import sys

if sys.version_info >= (3, 11):
    from typing import Self
else:
    from typing_extensions import Self

Test plan

• python3.10 -c "from dynamo.common.configuration.config_base import ConfigBase" — no ImportError
• python3.10 -m dynamo.frontend --help — prints help as expected
• Existing Python 3.11+ behavior unchanged

---

Summary by CodeRabbit

• Chores
  • Enhanced Python version compatibility for type handling in internal configuration components.

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[github-actions]

👋 Hi aryanputta! Thank you for contributing to ai-dynamo/dynamo.

Just a reminder: The NVIDIA Test Github Validation CI runs an essential subset of the testing framework to quickly catch errors.Your PR reviewers may elect to test the changes comprehensively before approving your changes.

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 1 additional finding.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 470434a7-732b-4722-8b66-1ec865437cd9

📥 Commits

Reviewing files that changed from the base of the PR and between d94b350 and c742caa.

📒 Files selected for processing (1)

• components/src/dynamo/common/configuration/config_base.py

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Walkthrough

Updated the import of Self type in config_base.py to be conditional on Python version: uses typing.Self for Python 3.11+, falling back to typing_extensions.Self for earlier versions to resolve ImportError on Python 3.10.

Changes

Cohort / File(s)	Summary
Python Version Compatibility components/src/dynamo/common/configuration/config_base.py	Added version-aware import logic for Self type annotation. When Python >= 3.11, imports from typing; otherwise, imports from typing_extensions to support Python 3.10 compatibility.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: supporting typing.Self on Python 3.10 via typing_extensions fallback.
Description check	✅ Passed	The description includes a clear summary, detailed explanation of the fix, code example, and test plan checklist covering all required template sections.
Linked Issues check	✅ Passed	The PR fully addresses issue #8322 by implementing the conditional import pattern required to support Python 3.10 while maintaining Python 3.11+ compatibility.
Out of Scope Changes check	✅ Passed	All changes are directly scoped to fixing the ImportError issue in config_base.py; no unrelated modifications are present.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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