Re: deleting an object

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  • Terry Reedy

    #1

    Re: deleting an object

    Karl Kobata wrote:
    Please help. Questions based on snippet of code below.
    Please post code that works. Use cut and paste.
    1) when myTestCase is deleted, is just the pointer deleted or the
    entire instance with all of its data and data structure deleted?
    Have you read the manual section on the del statement?
    2) What is the practice for deleted the object and recovering the
    memory it occupies?
    Most programs use del rather sparingly. Most temporary objects are
    created within functions and get unbound automatically when the function
    exits. If you need to guarantee release of external resources before
    the program ends, make explict calls to .close methods of the instances
    that connect to them. Actually memory recovery depends on the
    implementation and version. I would not worry about this until you
    really need to.
    3) If delete is the way, what happens to
    ‘testUtils.util Function1()’ if it were instantiated in other classes
    that have not been deleted yet?
    Objects will not be destroyed while still reachable from code (in the
    absence of a severe bug).
    import testUtils
    class testClass:
    def __init__(self):
    self.testList = list()
    self.testDict1 = dict()
    self.utils1 = testUtils.utilF unction1()
    myTestCase = testClass()
    delete myTestCase
    Don't indent main body code.
    Do use legal keywords.

    tjr

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