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pythonpython-3.xlldb

How to import lldb module for python on Mac?

I need a lldb python library to debug my python script. I made my python environment configuration following the lldb.llvm.org's instructions. But I got some errors as follow:

/Users/heping/Desktop/Scripts/.env/python-3.7.3/bin/python /Applications/PyCharm.app/Contents/plugins/python/helpers/pydev/pydevd.py --multiproc --qt-support=auto --client 127.0.0.1 --port 57996 --file /Users/heping/Desktop/Scripts/RevealServerCommands.py
pydev debugger: process 59879 is connecting

Connected to pydev debugger (build 193.5662.61)
Traceback (most recent call last):
  File "/Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework/Resources/Python/lldb/__init__.py", line 35, in <module>
    import _lldb
ModuleNotFoundError: No module named '_lldb'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework/Resources/Python/lldb/__init__.py", line 38, in <module>
    from . import _lldb
ImportError: dynamic module does not define module export function (PyInit__lldb)

And the PyCharm project structure is as picture showing blow:
PyCharm Screenshot

Solution

  • The lldb python module shipped with Xcode builds against a specific version of Python.

    Prior to Xcode 11 lldb was built against the Python2.7.1 in /System/Library/Frameworks. Starting with Xcode 11, lldb is built against the version of Python 3 (currently 3.7.3) that ships with the Xcode from which you got your lldb. You can locate the proper python3 command line tool by running xcrun python3.

    We haven't had much success getting the lldb module we build against this 3.7.3 Python to load into other hand-built Pythons. I'm not sure that this is particularly well supported by Python, though I don't know of anybody who has looked into what it would take to support this.

    We do use a lot of the Python C API's in the lldb bindings, so we are more bound to the Python version than pure Python modules. Anyway, at present if you need to load the lldb module into a python you have installed from elsewhere, you will most likely need to hand-build lldb against that python library.