[BUG] cannot import name 'core' from partially initialized module 'tvm.ffi' (most likely due to a circular import)

[manoj286]

following https://github.com/serialscriptr/Orange-PI-5-Pro-MLC-LLM?tab=readme-ov-file
python -c "import tvm; print(tvm.file)"

Traceback (most recent call last):
File "", line 1, in
File "/home/orangepi/tvm-unity/python/tvm/init.py", line 27, in
from .ffi import register_object, register_func, get_global_func
File "/home/orangepi/tvm-unity/python/tvm/ffi/init.py", line 23, in
from .registry import register_object, register_func, get_global_func, _init_api
File "/home/orangepi/tvm-unity/python/tvm/ffi/registry.py", line 19, in
from . import core
ImportError: cannot import name 'core' from partially initialized module 'tvm.ffi' (most likely due to a circular import) (/home/orangepi/tvm-unity/python/tvm/ffi/init.py)

[kairos-yu]

Hi, have you managed to solve this issue? I recently encountered the same error. @manoj286

[qwrty3700]

[zhwllq]

Hi, have you managed to solve this issue? I recently encountered the same error. @manoj286 @kairos-yu

[kairos-yu]

@zhwllq
Step 1: Verify Python Path Configuration
Check PYTHONPATH: Ensure the PYTHONPATH environment variable includes the path to TVM's Python modules (typically tvm/python). This directory must contain the compiled CPython extension named cpython*core.so.

Step 2: Build and Deploy Core Library
Build from Source: The core library should be compiled from tvm/ffi/. You can reference the build configuration at:

relax/ffi/CMakeLists.txt

Line 174 in 4bdd003

########## Adding python module ##########

Alternative Approach: Alternatively, you can build the core.so separately and manually place it in the python/tvm/ffi/ directory.