Important: Please read the Qt Code of Conduct -

Some programs run, some do not

  • Using Python 2.73, PyQt4 0n windows 7. PATH F:\Python27.

    The sample graphs, downloaded from,
    work every time, from any directory.

    The examples installed with the PyQt4 package also work every time.

    My problem is that any other program which uses Qwt5; some from a Python book,
    and some from internet sites, do not work at all.
    The Windows command screen opens, and immediately closes.
    No error messages.

    I have tried everything I can think of, and getting nowhere.
    It does not seem logical.

    Any ideas?
    Don Oliver

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