fix: isolate PyInstaller library paths for subprocess calls#8628
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dcabib wants to merge 1 commit intoaws:developfrom
Open
fix: isolate PyInstaller library paths for subprocess calls#8628dcabib wants to merge 1 commit intoaws:developfrom
dcabib wants to merge 1 commit intoaws:developfrom
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When SAM CLI runs from the native installer (PyInstaller-based), it sets LD_LIBRARY_PATH/DYLD_LIBRARY_PATH to include bundled libraries. This causes conflicts when spawning external processes like npm, node, or pip that need system libraries (e.g., OpenSSL version mismatch on Fedora 43). This change: - Detects PyInstaller bundle via sys._MEIPASS - Filters bundled library paths from environment variables early in CLI init - Ensures external processes use system libraries instead of bundled ones Fixes aws#8542
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pr/external
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bnusunny
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Feb 5, 2026
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| # Filter out paths that are inside the PyInstaller bundle | ||
| filtered_paths = [ | ||
| p for p in paths if not p.startswith(meipass) and "_internal" not in p and "dist/_internal" not in p |
Contributor
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The current filtering logic might be slightly too broad. The "_internal" not in p check could theoretically filter legitimate system paths containing "_internal". Consider making it more specific:
filtered_paths = [
p for p in paths
if not (p.startswith(meipass) or
p.endswith("/_internal") or
"dist/_internal" in p)
]
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Description
When SAM CLI runs from the native installer (PyInstaller-based), it sets LD_LIBRARY_PATH/DYLD_LIBRARY_PATH to include bundled libraries. This causes conflicts when spawning external processes like npm, node, or pip that need system libraries (e.g., OpenSSL version mismatch on Fedora 43).
Changes
Testing
Fixes #8542
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