⚡️ Speed up function get_default_environment by 9%
#8
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📄 9% (0.09x) speedup for
get_default_environmentinsrc/mcp/client/stdio/__init__.py⏱️ Runtime :
106 microseconds→97.6 microseconds(best of213runs)📝 Explanation and details
Here’s a faster and slightly more memory-efficient version of your function. This version iterates only once over the environment and only picks out keys of interest, avoiding extra dictionary lookups and skips unconditional continues by restructuring control-flow.
Optimizations explained:
os.environonly once, reducing attribute lookups.try/except KeyErrorfor key fetch to avoid repeated dictionary lookups (faster thaninor.get()when most keys exist).Functionality and comments are preserved.
✅ Correctness verification report:
🌀 Generated Regression Tests Details
To edit these changes
git checkout codeflash/optimize-get_default_environment-ma2z8033and push.