docs: Document hermetic Python toolchain compatibility issue #267
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
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>
jlojosnegros
force-pushed
the
doc/hermetic-python-workaround
branch
from
a003f4c to
59b94d5
Compare
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
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