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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 installation_report(self, req, dist, what="Installed"):
 """Helpful installation message for display to package users"""

        msg = "\n%(what)s %(eggloc)s%(extras)s"
        if self.multi_version and not self.no_report:
            msg += '\n' + self.__mv_warning
            if self.install_dir not in map(normalize_path, sys.path):
                msg += '\n' + self.__id_warning

        eggloc = dist.location
        name = dist.project_name
        version = dist.version
        extras = ''  # TODO: self.report_extras(req, dist)
        return msg % locals()