Anatomy of a Python OpenTelemetry Instrumentation

Explore the inner workings of Python OpenTelemetry instrumentations in this 30-minute conference talk from EuroPython 2025. Demystify how OpenTelemetry Python instrumentations automatically bootstrap from installed dependencies, patch code seamlessly, and work out of the box without manual intervention. Discover the Python features and community libraries that power these seemingly magical capabilities. Learn how opentelemetry-bootstrap automatically installs instrumentations for your libraries, understand how opentelemetry-instrument uses the sitecustomize module for auto-instrumentation, examine how entry points enable component discovery, and see how instrumentations patch third-party code. Dive into the actual code implementation to understand what happens behind the scenes in this black box technology that makes distributed tracing accessible and automatic for Python developers.