docs: Document hermetic Python toolchain compatibility issue#267
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docs: Document hermetic Python toolchain compatibility issue#267jlojosnegros wants to merge 1 commit intohedronvision:mainfrom
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Add documentation for known issue with hermetic Python toolchains that can cause placeholder expansion errors when using py_binary. The issue occurs when projects use custom hermetic Python interpreters (e.g., @python3_12_host//:python) where rules_python placeholder expansion fails, causing errors like: python3: can't open file '%interpreter_args%' This affects large C++ projects like Envoy proxy and TensorFlow that use hermetic Python in containerized build environments. Document three workaround options: 1. Use system Python for development tooling 2. Manual sh_binary wrapper to bypass rules_python templating 3. Fork and patch for organizational needs Related: hedronvision#165, hedronvision#245, hedronvision#168 Signed-off-by: Jose Luis Ojosnegros Manchón <jl.ojosnegros.manchon@gmail.com>
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Add documentation for known issue with hermetic Python toolchains that can cause placeholder expansion errors when using py_binary.
The issue occurs when projects use custom hermetic Python interpreters (e.g., @python3_12_host//:python) where rules_python placeholder expansion fails, causing errors like:
python3: can't open file '%interpreter_args%'
This affects large C++ projects like Envoy proxy and TensorFlow that use hermetic Python in containerized build environments.
Document three workaround options:
Related: #165, #245, #168