[lcd_simulated] use f-string instead of +

Author: ColdWindScholar

library/lcd/lcd_simulated.py

@@ -38,11 +38,11 @@ def do_GET(self):
             self.send_response(200)
             self.send_header("Content-type", "text/html")
             self.end_headers()
-            self.wfile.write(bytes("<img src=\"" + SCREENSHOT_FILE + "\" id=\"myImage\" />", "utf-8"))
+            self.wfile.write(bytes(f"<img src=\"{SCREENSHOT_FILE}\" id=\"myImage\" />", "utf-8"))
             self.wfile.write(bytes("<script>", "utf-8"))
             self.wfile.write(bytes("setInterval(function() {", "utf-8"))
             self.wfile.write(bytes("    var myImageElement = document.getElementById('myImage');", "utf-8"))
-            self.wfile.write(bytes("    myImageElement.src = '" + SCREENSHOT_FILE + "?rand=' + Math.random();", "utf-8"))
+            self.wfile.write(bytes(f"    myImageElement.src = '{SCREENSHOT_FILE}?rand=' + Math.random();", "utf-8"))
             self.wfile.write(bytes("}, 250);", "utf-8"))
             self.wfile.write(bytes("</script>", "utf-8"))
         elif self.path.startswith("/" + SCREENSHOT_FILE):
@@ -67,7 +67,7 @@ def __init__(self, com_port: str = "AUTO", display_width: int = 320, display_hei
 
         try:
             self.webServer = HTTPServer(("localhost", WEBSERVER_PORT), SimulatedLcdWebServer)
-            logger.debug("To see your simulated screen, open http://%s:%d in a browser" % ("localhost", WEBSERVER_PORT))
+            logger.debug(f"To see your simulated screen, open http://localhost:{WEBSERVER_PORT} in a browser")
             threading.Thread(target=self.webServer.serve_forever).start()
         except OSError:
             logger.error("Error starting webserver! An instance might already be running on port %d." % WEBSERVER_PORT)