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[DOC] Add document for develop with PYTHONPATH #1062

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Oct 18, 2025
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[DOC] Add document for develop with PYTHONPATH #1062

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20 changes: 20 additions & 0 deletions docs/get_started/Installation.md
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Expand Up @@ -65,6 +65,26 @@ If you want to install **tile-lang** in development mode, you can run the follow
pip install -e . -v
```

If you prefer to work directly from the source tree via `PYTHONPATH`, make sure the native extension is built first:

```bash
mkdir -p build
cd build
cmake .. -DUSE_CUDA=ON
make -j
```
Then add the repository root to `PYTHONPATH` before importing `tilelang`, for example:

```bash
export PYTHONPATH=/path/to/tilelang:$PYTHONPATH
python -c "import tilelang; print(tilelang.__version__)"
```

Some useful CMake options you can toggle while configuring:
- `-DUSE_CUDA=ON|OFF` builds against NVIDIA CUDA (default ON when CUDA headers are found).
- `-DUSE_ROCM=ON` selects ROCm support when building on AMD GPUs.
- `-DNO_VERSION_LABEL=ON` disables the backend/git suffix in `tilelang.__version__`.

We currently provide four methods to install **tile-lang**:

1. [Install Using Docker](#install-method-1) (Recommended)
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