WorkEtc的Python实现。API接口

Question

我找到了关于这项工作的this帖子等。Python REST客户端的论坛和使用的论坛没有包括代码的缩进，作者也没有包括它们，所以我所做的就是输入我认为是正确的缩进，并得到以下结果：

import sys, json, urllib
from httplib2 import Http

class WORKetcRESTClient():
    session_key = None
    connector_hash = None

    def __init__(self,url):
        if not "http://" in url and not "https://" in url:
            url = "http://%s" % url
            self.base_url = url
        else:
            self.base_url = url

    def authenticate(self,user,password):
        args = { "email" : user,"pass" : password,}
        res = self.request("AuthenticateWebSafe", args)

        if res["Code"] == 1:
            self.session_key = res["SessionKey"]
            self.user = res["User"]
            return True
        else:
            return False

    def request(self,service,args):
        url = "%s/%s" % (self.base_url, service)
        if not self.session_key is None:
            url = "%s?VeetroSession=%s" %(url,self.session_key)
        p = {}
        p['data'] = json.dumps(args)
        h = Http()
        r,c = h.request(url, body=json.dumps(args), method="POST", headers = {'contentType' : 'application/json; charset=utf-8'})
        if r.status == 200:
            jsondata = json.loads(c)
            return jsondata
        else:
            print r,c
            return {}

client = WORKetcRESTClient('http://company.worketc.com')
client.authenticate('User@company.com', 'pAsSwOrD')
result = client.request('FindCompanies',{'keywords':'customer'})
print result

说实话，如果运行时没有任何错误，我不确定我会把什么打印到控制台上，但我得到的错误使我无法找出：

Traceback (most recent call last):
 File "worketc.py", line 42, in <module>

  File "worketc.py", line 17, in authenticate
    res = self.request("AuthenticateWebSafe", args)
  File "worketc.py", line 34, in request
    if r.status == 200:
UnboundLocalError: local variable 'r' referenced before assignment

它告诉我变量'r‘在赋值/创建之前被调用，但考虑到它在当前脚本中的位置，我不确定它需要被创建或移动到哪里。有谁能解释一下这个问题吗？

Answer 1

   if not self.session_key is None:
        url = "%s?VeetroSession=%s" %(url,self.session_key)
   p = {}
   p['data'] = json.dumps(args)
   h = Http()
   r,c = h.request(url, body=json.dumps(args), method="POST", headers = {'contentType' : 'application/json; charset=utf-8'})

是正确的缩进