naleraphael / bytetrace

A tool for tracing bytecode execution. (just a POC currently)

bytetrace

This is just a POC currently.

A tool for tracing bytecode execution.

Note that this tool currently works on CPython >= 3.7 only, because it relies on a new event PyTrace_OPCODE, which is added in CPython 3.7, dispatched inside the bytecode evaluation loop (known as ceval.c::PyEval_EvalFrame).

Install

$ pip install git+https://github.com/naleraphael/bytetrace.git

Usage

It's simple, just like you are using pdb.

import bytetrace

# ... your code
bytetrace.set_trace()
# ... your code

Commands

• q(uit) Enter this command twice to quit from debugger.

• pfl (print_f_locals) Print f_locals of current frame. (equivalent to inspect.currentframe().f_locals)