fix: post method, csrf token and return right valu

src/Client.py

@@ -13,18 +13,15 @@ class Client:
         return (not self.token is None)
     
     def login(self, username: str, password: str):
-        response: Response = self._post(urls.accounts_login_url, {'username': username, 'password': password})
+        response: Response = self._post(urls.accounts_login, {'username': username, 'password': password})
         return response.content
     
-    def register(self, username: str, password: str):
-        response: Response = self._post(urls.accounts_register_url, {'username': username, 'password': password})
-        return response
-    
-    def _post(self, uri: str, data: dict):
+    def _post(self, uri: str, data: dict = {}):
         url: str = self.url + uri
         if self.token is None:
             response: Response = self.session.get(url)
-            self.token = response.cookies['csrftoken']
+            self.token = response.cookies.get('csrftoken')
         data.update({'csrfmiddlewaretoken': self.token})
         response: Response = self.session.post(url, data = data, headers = dict(Referer=url))
-        return response.content
+        self.token = response.cookies.get('csrftoken')
+        return response