訪問請求時出現KeyError.POST

Question

我在python中遇到了關鍵錯誤。

錯誤這樣..........

KeyError at /python_tutor/ 
'user_script' 

，併爲這個代碼是

import web_exec 
def tutor(request): 
    print "Inisde tutor", request.method 
    print "POST =", request.POST 
    if request.method == "POST" : 
     print "Inside Post" 
     print "My Script =", request.POST["user_script"] 
     mycode = request.POST["user_script"] 
     exec mycode 
    web_exec('mycode') 

請給我解決這個？

Answer 1

這意味着密鑰（user_script）在字典中不存在（request.POST）;這表明它沒有被提交。嘗試：

if 'user_script' in request.POST: 
    print "My Script =", request.POST["user_script"] 
    mycode = request.POST["user_script"] 

Answer 2

mycode = request.POST.get('user_script', None)