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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 pounce(self, file, show=False):
 """writes a pounce command to the Purr pipe"""

        file = os.path.abspath(os.path.normpath(os.path.realpath(file)))
        self._write("pounce:%d:%s\n" % (int(show), file))
        return self