使用pdblp从bloomberg中为我的python代码提取数据时出错

Question

我已经编写了在安装了bloomberg的桌面上尝试pdblp的代码。我得到了以下错误。有人能帮我解决这个问题吗

In [8]:import pdblp
con=pdblp.BCon(debug=True,port=8194,timeout=5000)
con.start
Out[8]:<bound method BCon.start of <pdblp.pdblp.BCon object at 0x00000178D754ECA0>>

In [9]:con.bdh('SPY US EQUITY','PX_LAST','20150629','20150630')
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-9-33b8950f39e7> in <module>
----> 1 con.bdh('SPY US EQUITY','PX_LAST','20150629','20150630')
~Anaconda3libsite-packagespdblppdblp.py in bdh(self, tickers, flds, start_date, end_date, elms, ovrds, longdata)
272         elms = list(elms)
273 
--> 274         data = self._bdh_list(tickers, flds, start_date, end_date,
275                               elms, ovrds)
276 
~Anaconda3libsite-packagespdblppdblp.py in _bdh_list(self, tickers, flds, start_date, end_date, elms, ovrds)
296         setvals.append(('endDate', end_date))
297 
--> 298         request = self._create_req('HistoricalDataRequest', tickers, flds,
299                                    ovrds, setvals)
300         logger.info('Sending Request:n{}'.format(request))
~Anaconda3libsite-packagespdblppdblp.py in _create_req(self, rtype, tickers, flds, ovrds, setvals)
191             pass
192 
--> 193         request = self.refDataService.createRequest(rtype)
194         for t in tickers:
195             request.getElement('securities').appendValue(t)
AttributeError: 'BCon' object has no attribute 'refDataService'

错误消息我看到

Answer 1

您需要在连接对象上调用start方法。

con.start()