This is a small Python package that offers fast runtime inspection similar to that of inspect module in Python. To install, simply do
::
pip install uinspect
The following benchmark is generated from running the scripts in benchmark/.
+-----------------+-----------------------------------------------------+------------------------------+---------+---------+--------------+
| Task name | uinspect method1 | uinspect method2 | inspect | speedup | Cost (us/op) |
+=================+=====================================================+==============================+=========+=========+==============+
| Source location | uinspect.get_location() - 0.21s | uinspect.Frame() - 0.48s | 16.43s | 79.7x | 0.21 us/op |
+-----------------+-----------------------------------------------------+------------------------------+---------+---------+--------------+
| Locals | uinspect.Frame().locals - 0.99s | N/A | 0.82s | 0.82x | 0.99 us/op |
+-----------------+-----------------------------------------------------+------------------------------+---------+---------+--------------+
| Locals diff | uinspect.Frame(2).collect_vars() - 2.94s | N/A | 1.20s | 0.41x | 2.94 us/op |
+-----------------+-----------------------------------------------------+------------------------------+---------+---------+--------------+
| Frame walking | uinspect.FrameWalker({}).get_location() - 1.45s | N/A | 52.27s | 35.9x | 1.46 us/op |
+-----------------+-----------------------------------------------------+------------------------------+---------+---------+--------------+
It turns out that the uinspect does not speed up the local variable calculation. This is because we have to run an expensive Python C API call regardless of whether it’s uinspect or inspect. As a result, the overhead is caused by the fact that uinspect needs to convert Python object to C++ object.
The lesson is to use inspect module for any local variables related manipulation since it’s faster, but use uinspect to obtain source location.
::
git clone https://github.com/Kuree/uinspect.git cd uinspect git submodule update --init python setup.py install
FAQs
Ultra-fast inspect functions for Python
We found that uinspect demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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