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Fix #18714: [Docs] python -c "import tvm; print(tvm.file)" fail #19407

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Merged
tlopex merged 1 commit into from
Apr 15, 2026
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Fix #18714: [Docs] python -c "import tvm; print(tvm.file)" fail #19407

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3 changes: 2 additions & 1 deletion docs/install/from_source.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -163,7 +163,8 @@ Leaving the build environment ``tvm-build-venv``, there are two ways to install
.. code-block:: bash

export TVM_HOME=/path-to-tvm
export PYTHONPATH=$TVM_HOME/python:$PYTHONPATH
pip install $TVM_HOME/3rdparty/tvm-ffi
export PYTHONPATH=$TVM_HOME/python:$TVM_HOME/3rdparty/tvm-ffi/python:$PYTHONPATH
Comment on lines +166 to +167
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@gemini-code-assist gemini-code-assist bot Apr 15, 2026

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medium

Using an editable install (pip install -e) for tvm-ffi is a more robust approach for a source-based installation. It registers the necessary package metadata to resolve the PackageNotFoundError while keeping the package linked to the source directory. This ensures that tvm-ffi stays in sync with your source tree (e.g., after a git pull) and removes the need to manually add its path to PYTHONPATH. Having the same package in both site-packages and PYTHONPATH is redundant and can lead to import conflicts or version mismatches.

Suggested change
pip install $TVM_HOME/3rdparty/tvm-ffi
export PYTHONPATH=$TVM_HOME/python:$TVM_HOME/3rdparty/tvm-ffi/python:$PYTHONPATH
pip install -e $TVM_HOME/3rdparty/tvm-ffi
export PYTHONPATH=$TVM_HOME/python:$PYTHONPATH


- Install via pip local project

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