Method print_version

Lib/optparse.py:1586–1595

print_version(file : file = stdout) Print the version message for this program (self.version) to 'file' (default stdout). As with print_usage(), any occurrence of "%prog" in self.version is replaced by the current program's name. Does nothing if self.version is emp

(self, file=None)

            return ""

    def print_version(self, file=None):
        """print_version(file : file = stdout)

        Print the version message for this program (self.version) to
        'file' (default stdout).  As with print_usage(), any occurrence
        of "%prog" in self.version is replaced by the current program's
        name.  Does nothing if self.version is empty or undefined.
        """
        if self.version:
            print(self.get_version(), file=file)

    def format_option_help(self, formatter=None):
        if formatter is None: