Describe the feature request
Summary
I would like to request support in the Python API for registering a custom logging function/callback for ONNX Runtime, similar to the C++ Ort::Env custom logger support.
Problem
Currently the Python binding creates a global runtime environment at import time, and the logging callback is hardcoded to nullptr:
static Status CreateOrtEnv() {
Env::Default().GetTelemetryProvider().SetLanguageProjection(OrtLanguageProjection::ORT_PROJECTION_PYTHON);
OrtEnv::LoggingManagerConstructionInfo lm_info{nullptr, nullptr, ORT_LOGGING_LEVEL_WARNING, "Default"};
Status status;
ort_env = OrtEnv::GetOrCreateInstance(lm_info, status, use_global_tp ? &global_tp_options : nullptr).release();
...Because of this, Python users cannot provide a custom logging function to receive ORT log messages (for example, to write logs to a file or integrate with a custom Python logger).
Proposed behavior
Expose a Python API that allows registration of a custom logging callback before the global runtime environment is created, for example:
- a module-level
set_logger_callback(...)
- a
SessionOptions or global logger registration API
- a Python callable that is forwarded into
OrtEnv::LoggingManagerConstructionInfo
Would you be open for this feature?
Describe scenario use case
The C++ API already supports custom logging via OrtApi::CreateEnvWithCustomLogger() / Ort::Env(OrtLoggingFunction, ...). Python should expose a similar capability so that ORT logging behavior can be controlled from Python applications. To get ORT logs into a file, it is currently necessary to mangle with system file descriptors which is not a sustainable solution.
Describe the feature request
Summary
I would like to request support in the Python API for registering a custom logging function/callback for ONNX Runtime, similar to the C++
Ort::Envcustom logger support.Problem
Currently the Python binding creates a global runtime environment at import time, and the logging callback is hardcoded to
nullptr:Because of this, Python users cannot provide a custom logging function to receive ORT log messages (for example, to write logs to a file or integrate with a custom Python logger).
Proposed behavior
Expose a Python API that allows registration of a custom logging callback before the global runtime environment is created, for example:
set_logger_callback(...)SessionOptionsor global logger registration APIOrtEnv::LoggingManagerConstructionInfoWould you be open for this feature?
Describe scenario use case
The C++ API already supports custom logging via
OrtApi::CreateEnvWithCustomLogger()/Ort::Env(OrtLoggingFunction, ...). Python should expose a similar capability so that ORT logging behavior can be controlled from Python applications. To get ORT logs into a file, it is currently necessary to mangle with system file descriptors which is not a sustainable solution.