Python CGI與串口通信

我在通過python cgi程序與串口通信時遇到問題。我在html中有兩個按鈕來控制兩個LED（LED1，LED2）。Python CGI與串口通信

<html> 
<h1>Test Page 2</h1> 
<form name="input" action="/cgi-bin/myscript-2.py" method="get"> 
<input type="submit" value="LED1" name="Submit"> 
<input type="submit" value="LED2" name="Submit1"> 
</form> 
</html>

現在我的Python程序從這裏接收結果

#!/usr/bin/python 
import cgi 
import cgitb; 
import serial 
form = cgi.FieldStorage() 
cgitb.enable() 
port = "/dev/ttyACM0" 
ser = serial.Serial(port, 9600, timeout=0) 
if "LED1" in form: 
    ser.write("hello") 
elif "LED2" in form: 
    ser.write("hello") 
else: 
    print "Couldn't determine which button was pressed."

我總是讓想不出確定button.The Apache的錯誤日誌是這樣

[Sat Nov 08 12:41:41.579738 2014] [cgid:error] [pid 1080:tid 3004140352] [client 127.0.0.1:48698] malformed header from script 'myscript-2.py': Bad header: Couldn't determine which butto, referer: http://localhost/page2.html

來源

2014-11-08 ganeshredcobra

當您的代碼包含「無法確定哪個按鈕被按下」時，您是否真的得到了錯誤消息「無法確定哪個按鈕」（最後沒有「n」）？ – 2014-11-08 21:12:18

另外，你有沒有嘗試簡單地打印「表格」？價值最終成爲什麼？ – 2014-11-08 21:13:01