Get_backtest() / Pyfolio not working in research

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Get_backtest() / Pyfolio not working in research

posted Feb 24, 2016

Seeking Help Using Data Research

Hi, for all backtesting I have tried, I get the following error while attempting to run get_backtest() with backtest IDs that used to work seamlessly.

ChunkedEncodingError Traceback (most recent call last)
in ()
----> 1 bt1 = get_backtest('56cbcd1169c89d0dec9773b4') # 1+ 3 & 3 + 1

/build/src/qexec_repo/qexec/research/api.py in get_backtest(backtest_id) 260 return BacktestResult(client.get_sqlbacktest(backtest_id),
261 progress_bar,
--> 262 backtest_id)
263
264

/build/src/qexec_repo/qexec/research/results.py in init(self, result_iterator, progress_bar, algo_id) 441 saw_a_perf_packet = False
442 progress_bar.start()
--> 443 for msg in result_iterator:
444 prefix, payload = msg['prefix'], msg['payload']
445

/build/src/qexec_repo/qexec/research/web/client.pyc in get_sqlbacktest(self, backtest_id) 353 resp = self._make_get_sqlbacktest_request(backtest_id)
354 with closing(resp):
--> 355 for msg in resp.iter_lines():
356 yield loads(msg)
357

/usr/local/lib/python2.7/dist-packages/requests/models.pyc in iter_lines(self, chunk_size, decode_unicode, delimiter) 700 pending = None
701
--> 702 for chunk in self.iter_content(chunk_size=chunk_size, decode_unicode=decode_unicode):
703
704 if pending is not None:

/usr/local/lib/python2.7/dist-packages/requests/models.pyc in generate() 661 yield chunk
662 except ProtocolError as e:
--> 663 raise ChunkedEncodingError(e)
664 except DecodeError as e:
665 raise ContentDecodingError(e)

ChunkedEncodingError: ('Connection broken: IncompleteRead(0 bytes read)', IncompleteRead(0 bytes read))

3 responses

+1
I'm getting those errors too.

Every time, @ random completion %.

# Get backtest object  
bt = get_backtest('56d52c10d6adb80f19520d14')  

# Create all tear sheets  
bt.create_full_tear_sheet()  
 27% ETA:  0:04:40|###############                                            |  
---------------------------------------------------------------------------  
ChunkedEncodingError                      Traceback (most recent call last)  
<ipython-input-16-884fd7af7fb0> in <module>()  
      1 # Get backtest object  
----> 2 bt = get_backtest('56d52c10d6adb80f19520d14')

kamran sokhanvari

Yep, it has been broken for a few weeks now. Specialty for a longer test periods. The request in the back-end server times out !

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In addition, the material offers no opinion with respect to the suitability of any security or specific investment. No information contained herein should be regarded as a suggestion to engage in or refrain from any investment-related course of action as none of Quantopian nor any of its affiliates is undertaking to provide investment advice, act as an adviser to any plan or entity subject to the Employee Retirement Income Security Act of 1974, as amended, individual retirement account or individual retirement annuity, or give advice in a fiduciary capacity with respect to the materials presented herein. If you are an individual retirement or other investor, contact your financial advisor or other fiduciary unrelated to Quantopian about whether any given investment idea, strategy, product or service described herein may be appropriate for your circumstances. All investments involve risk, including loss of principal. Quantopian makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances.