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6vep-comprehension.md

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Comprehension

#python #datastructure #efficiency

  • [[x4fp-dictcomp]]#

  • [[ndtq-listcomp]]#

  • [[n803-setcomp]]#

  • [[0651-genexp]]#

  • Both dict and set use braces {} to initialize comprehension

    • The difference on what will be the final result depends on which is provide inside braces

  • Generation expression does not initialize a list, in that case saves more memory

    • Used with tuples and other type of sequences (array.array for example)
    • One element is treated per time

  • On array.array for generation expression you can pass the type of the natural number.

  • List comprehension are faster than genexp, but can only save the result as List, while genexp can save in any iterable type.

Reference