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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_window_dim():
 """ gets the dimensions depending on python version and os"""

    version = sys.version_info

    if version >= (3, 3):
        return _size_36()
    if platform.system() == 'Windows':
        return _size_windows()
    return _size_27()