lptrace
A debugging tool that traces Python function calls in real-time, similar to strace for Python programs.
What is lptrace?
lptrace is a debugging utility that attaches to running Python processes to trace function calls in real-time, similar to strace but for Python code. It works by injecting code via gdb to hook into the Python interpreter's trace functionality, allowing developers to see exactly what functions are being executed without stopping the program. It is particularly useful for diagnosing issues in production environments where restarting the process is not feasible.
Python developers and system administrators who need to debug live, production Python applications without interrupting service, especially those troubleshooting performance issues, deadlocks, or unexpected behavior in deployed code.
Developers choose lptrace because it provides real-time visibility into Python function execution with minimal dependencies—requiring only Python 2.7.x and GDB 7.x—and no installation on the target process. Its unique ability to optionally inject a pdb debugger prompt for interactive debugging sets it apart from simple logging or static analysis tools.
Overview
Trace any Python program, anywhere!
Use Cases
Best For
- Debugging production Python applications where restarting the process is not an option.
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