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TypeEvalPy: A Micro-benchmarking Framework for Python Type Inference Tools

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arxiv 2312.16882 v2 pith:J3LEBOOL submitted 2023-12-28 cs.SE

classification cs.SE
keywords typeinferencepythontoolsframeworktypeevalpymicro-benchmarkingperformance
verification ladder T0 review T1 audit T2 compute T3 formal
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In light of the growing interest in type inference research for Python, both researchers and practitioners require a standardized process to assess the performance of various type inference techniques. This paper introduces TypeEvalPy, a comprehensive micro-benchmarking framework for evaluating type inference tools. TypeEvalPy contains 154 code snippets with 845 type annotations across 18 categories that target various Python features. The framework manages the execution of containerized tools, transforms inferred types into a standardized format, and produces meaningful metrics for assessment. Through our analysis, we compare the performance of six type inference tools, highlighting their strengths and limitations. Our findings provide a foundation for further research and optimization in the domain of Python type inference.

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  1. Combining Type Inference and Automated Unit Test Generation for Python

    cs.SE 2025-07 conditional novelty 6.0 of 10

    A proxy-based type tracing technique integrated into Pynguin infers parameter and return types during test generation and improves branch coverage.

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