set baudrate and use the current filename in the help message

Author: rambo

examples/hp6632b_serial.py

@@ -9,11 +9,11 @@
 
 if __name__ == "__main__":
     if len(sys.argv) < 2:
-        print("run with python -i hp6632b.py /dev/ttyUSB0")
+        print(f"run with python -i {__file__} /dev/ttyUSB0")
         sys.exit(1)
     # Then put to interactive mode
     os.environ["PYTHONINSPECT"] = "1"
-    aiodev = hp6632b.rs232(sys.argv[1], rtscts=True)
+    aiodev = hp6632b.rs232(sys.argv[1], rtscts=True, baudrate=9600)
     dev = AIOWrapper(aiodev)
 
     atexit.register(dev.quit)

examples/prologix_usb.py

@@ -10,7 +10,7 @@
 
 if __name__ == "__main__":
     if len(sys.argv) < 2:
-        print("run with python -i hp6632b.py /dev/ttyUSB0")
+        print(f"run with python -i {__file__} /dev/ttyUSB0")
         sys.exit(1)
     # Then put to interactive mode
     os.environ["PYTHONINSPECT"] = "1"