ManyTypes4Py

A benchmark python dataset for machine learning-based type inference

Conference paper (2021)

Authors

S.A.M. Mir Software Engineering -

Evaldas Latoskinas Student

G. Gousios Software Engineering -

Research Group

Software Engineering () (TU Delft)

DOI: https://doi.org/10.1109/MSR52588.2021.00079

Machine Learning Python Type Inference Static Analysis Type Annotations

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http://resolver.tudelft.nl/uuid:899fabe3-15fc-40b5-afb4-59444d6f05ea

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Published Date

2021

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Software Technology

Research Group

Software Engineering

Abstract

In this paper, we present ManyTypes4Py, a large Python dataset for machine learning (ML)-based type inference. The dataset contains a total of 5, 382 Python projects with more than 869K type annotations. Duplicate source code files were removed to eliminate the negative effect of the duplication bias. To facilitate training and evaluation of ML models, the dataset was split into training, validation and test sets by files. To extract type information from abstract syntax trees (ASTs), a light-weight static analyzer pipeline is developed and accompanied with the dataset. Using this pipeline, the collected Python projects were analyzed and the results of the AST analysis were stored in JSON-formatted files. The ManyTypes4Py dataset is shared on zenodo and its tools are publicly available on GitHub.

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