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Engineering LibreTexts

10.4: List operations

  • Page ID
    40783
  • The + operator concatenates lists:

    >>> a = [1, 2, 3]
    >>> b = [4, 5, 6]
    >>> c = a + b
    >>> c
    [1, 2, 3, 4, 5, 6]
    

    The * operator repeats a list a given number of times:

    >>> [0] * 4
    [0, 0, 0, 0]
    >>> [1, 2, 3] * 3
    [1, 2, 3, 1, 2, 3, 1, 2, 3]
    

    The first example repeats [0] four times. The second example repeats the list [1, 2, 3] three times.

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