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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 __getFileObj(self, f):

 """Safety handler to verify file-like objects"""

        if not f:
            raise ShapefileException("No file-like object available.")
        elif hasattr(f, "write"):
            return f
        else:
            pth = os.path.split(f)[0]
            if pth and not os.path.exists(pth):
                os.makedirs(pth)
            return open(f, "wb+")