What is the difference between multiprocessing.Pool.map() and multiprocessing.Pool.imap()?

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What is the difference between multiprocessing.Pool.map() and multiprocessing.Pool.imap()?

Key points

  • map() blocks until all results are ready and returns a list
  • imap() returns a lazy iterator, allowing results to be consumed as they complete
  • imap() is memory efficient compared to map()
  • map() is suitable when all results are needed at once

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