Python Version Compatibility

Supported Versions

Python Version	Status	Notes
3.9	Supported	Minimum required version
3.10	Supported
3.11	Supported
3.12	Supported	Primary development/testing version
3.13	Supported
< 3.9	Not supported	OpenTelemetry SDK requires >= 3.9

Key Dependencies and Their Python Requirements

Dependency	Min Python	Notes
opentelemetry-api	3.9	Core dependency
opentelemetry-sdk	3.9	Core dependency
wrapt	3.9	Core dependency
requests	3.8	Core dependency
httpx	3.9	Core dependency
protobuf	3.9	Transitive (via OTel exporters)
grpcio	3.9	Transitive (via OTel gRPC exporter)

Version-Specific Notes

Python 3.9

• typing.get_type_hints may behave differently with some type annotations
• importlib.resources API differs from 3.10+; the library does not rely on this

Python 3.10

• No known issues

Python 3.11

• tomllib is available in stdlib (used by some dev tools)

Python 3.12

• Primary development and testing version
• All tests pass consistently

Python 3.13

• Tested; no known incompatibilities
• Some optional dependencies may not yet have wheels for 3.13

pyproject.toml Configuration

[project]
requires-python = ">=3.9"

Testing Across Versions

To test against multiple Python versions, use tox or run directly:

# Using specific Python version
python3.9 -m pytest tests/ -v
python3.12 -m pytest tests/ -v