SyntaxError: Non-ASCII character '\xc3' in file main9.py on line 97, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details code example

Example 1: Warning: sprintf(): Too few arguments in /opt/lampp/htdocs/wordpress/wp-admin/includes/class-bulk-upgrader-skin.php on line 152

if ( $this->result && ! is_wp_error( $this->result ) ) {
			if ( ! $this->error )
				echo '<div class="updated"><p>' . sprintf($this->upgrader->strings['skin_update_successful'], $title, 'jQuery(\'#progress-' . esc_js($this->upgrader->update_current) . '\').toggle();jQuery(\'span\', this).toggle(); return false;') . '</p></div>';
					echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js($this->upgrader->update_current) . '\').hide();</script>';
		}

Example 2: checking for the kernel version... unsupported (18.7.0) configure: error: Valgrind works on Darwin 10.x, 11.x, 12.x, 13.x, 14.x, 15.x, 16.x and 17.x (Mac OS X 10.6/7/8/9/10/11 and macOS 10.12/13)

brew install --HEAD https://raw.githubusercontent.com/sowson/valgrind/master/valgrind.rb