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  • Debugging and profiling techniques

    by Giovanni Bajo

    This talk will give on overview over some common problems related to profiling and debugging CPython applications (especially desktop-based ones).

    The following subjects will be covered:

    • Debugging of memory/resource leaks (circular references, __del__, weakref, garbage collector, etc.). We will show in details how the memory management of Python objects work and we will show a few tricks to track memory leaks
    • Python code profiling (profile/hotshots/cProfile, design of small tests, etc.). We will show how to measure, profile, and analyse an application to spot performance problems and solve them.
    • Post-mortem step-by-step debugging of C/C++ extension under Windows. We will show how to setup Visual Studio for debugging, how to see a traceback in case of an unexpected segfault, and how to further debug and solve the crash.

    This talk is aimed at intermediate Python programmers, who have already developed non-trivial Python applications but have never "jumped through" the interpreter abstraction layer. If you feel a little lost when you see a segfault from a Python program or you don't have a clear idea how memory is collected in Python, this talk is perfect for you.

    At 9:00am to 10:30am, Wednesday 22nd June

    Coverage video