Dataset for the research paper "How and Why Developers Migrate Python Tests from unittest to pytest"

This is the dataset for the proposed paper "How and Why Developers Migrate Python Tests from unittest to pytest". The `10_systems` zip file contains the aggregated and intermediate files for the systems used for precision and recall analysis. The `top_100_systems` zip file contains the aggregated and intermediate files for the top 100 python systems analyzes. The `reasons_theme` and `reasons_issues` contain data to assess advantages and disadvantages found in 61 issues