pylint-dev / pylint-ml

Pylint plugin enhancing code analysis for machine learning and data science
MIT License
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add-pandas-column-datatype-not-explicitly-set-checker #19

Closed PeterHamfelt closed 1 month ago

PeterHamfelt commented 6 months ago

To optimize data loading performance and ensure data integrity when using pandas' read_csv and similar functions, it is advisable to explicitly specify the dtype parameter for columns. This practice not only enhances memory efficiency and processing speed but also guarantees that each column is correctly typed from the outset, preventing potential type inference errors. By defining dtype explicitly, we maintain consistency across data loading operations, bolster reproducibility, and ensure that our data handling processes are as efficient and error-free as possible. Adopting this approach contributes significantly to the clarity, efficiency, and reliability of data processing workflows.

References https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.read_csv.html#pandas-read-csv