Python FileCookieJar.save() issue

Question

I have a problem while trying to save cookies to a file using FileCookieJar's save method. Here is my code:

#!/usr/bin/python
import httplib, cookielib, urllib2, json, time
from datetime import date


class FoN:
    def __init__(self):
            self.cookiefile = "cookies.txt"
            self.cj = cookielib.FileCookieJar(self.cookiefile)
    def login (self, login, password):
            js = json.JSONEncoder().encode({"login":login,"password":password})
            req=urllib2.Request("http://www.example.com/user/login", js)
            res=urllib2.urlopen(req)
            self.cj.extract_cookies(res,req)
            self.cj.save(self.cookiefile, ignore_discard=True)
            f.write ("Login: "+login+", result: "+str(res.read().count("true"))+"\n")
            time.sleep(2)
            return res

So it fails at self.cj.save(self.cookiefile, ignore_discard=True) raising NotImplementedError exception, which is according to the documentation. But my question how do I save cookies to the file then? I even tried to include the code in try clause but that didn't help at all.

Answer 1

The base FileCookieJar does not implement .save To get saving, you should use one of the subclasses like MozillaCookieJar or LWPCookieJar.