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read_csv performance tips in pandas

Limit parsed columns, set dtypes intentionally, and stream large files in chunks when needed.

Pandas Medium Theory

read_csv performance tips in pandas

Limit parsed columns, set dtypes intentionally, and stream large files in chunks when needed.

  • usecols avoids unused data
  • dtype reduces inference cost
  • chunksize helps large files
#io #pandas #performance

read_csv performance tips in pandas