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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 editDirectory(self, directoryName, physicalPath, description):
 """ The edit operation on a directory can be used to change the physical path and description properties of the directory. This is useful when changing the location of a directory from a local path to a network share. However, the API does not copy your content and data from the old path to the new path. This has to be done independently by the system administrator. Input: directoryName - name of the directory to change physicalPath - new path for directroy description - new description of the directory """

        url = self._url + "/directories/%s/edit" % directoryName
        params = {
            "f" : "json",
            "physicalPath": physicalPath,
            "description" : description
        }
        return self._post(url=url,
                            param_dict=params,
                            securityHandler=self._securityHandler,
                            proxy_port=self._proxy_port,
                            proxy_url=self._proxy_url)