在pickle中存储数据时出现IO错误

Question

i have a following code in a python to store data in pickle , but i am getting IO Error

[Errno 13] Permission denied: 'data.pkl'

Code

def SaveUserData(request):
       datalist={}
       datalist['empid']='127113'
       datalist['empname']='eric'
       datalist['empphone']='66335500'
       datalist['email']='eric.pk@moliba.com'
       output = open('data.pkl', 'wb')
       pickle.dump(datalist, output)
       output.close()
       data = simplejson.dumps(datalist, indent=4)
       return HttpResponse(data,mimetype='application/javascript')

Answer 1

好吧，我分配了绝对路径，它工作了!!

output = open('/home/user/test/wsservice/data.pkl', 'wb')

Answer 2

我在Python 3.4中注意到你可以这样做：
output = open(str(dataList), "wb")

Answer 3

In my case it was the problem with my current directory.

I have added the following lines to set the current working directory to my script directory.

Hope this will solve the problem if writing to the script directory do not need admin permission.

import sys, os

def getScriptPath():
    return os.path.dirname(os.path.realpath(sys.argv[0]))

print 'Current working directory : ', os.getcwd()
os.chdir(getScriptPath())
print 'Changed working directory : ', os.getcwd()