Notebook run_pipeline() got NotImplementedError (chunksize)

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Notebook run_pipeline() got NotImplementedError (chunksize)

posted Dec 9, 2017

Seeking Help Research Pipeline

Hi,

In Notebook, I ran run_pipeline() and got the following error (worked before and suddently don't work anymore). Has this something to do with chunksize? Anybody know what this error is and how to solve it? The memory usage is only 27%. Thanks.

NotImplementedErrorTraceback (most recent call last)
in ()
66 start = pd.Timestamp("2015-01-05")
67 end = pd.Timestamp("2017-12-05")
---> 68 results = run_pipeline(pipe, start_date=start, end_date=end)
69 #results.head()
70

/build/src/qexec_repo/qexec/research/api.py in run_pipeline(pipeline, start_date, end_date, chunksize) 479 start_date,
480 end_date,
--> 481 chunksize
482 )
483

/build/src/qexec_repo/qexec/research/_api.pyc in inner_run_pipeline(engine, equity_trading_days, pipeline, start_date, end_date, chunksize) 953 adjusted_start_date,
954 adjusted_end_date,
--> 955 chunksize=chunksize,
956 )
957

/build/src/qexec_repo/zipline_repo/zipline/pipeline/engine.pyc in run_chunked_pipeline(self, pipeline, start_date, end_date, chunksize) 328 chunksize,
329 )
--> 330 chunks = [self.run_pipeline(pipeline, s, e) for s, e in ranges]
331
332 if len(chunks) == 1:

/build/src/qexec_repo/zipline_repo/zipline/pipeline/engine.pyc in run_pipeline(self, pipeline, start_date, end_date) 309 dates,
310 assets,
--> 311 initial_workspace,
312 )
313

/build/src/qexec_repo/zipline_repo/zipline/pipeline/engine.pyc in compute_chunk(self, graph, dates, assets, initial_workspace) 516 mask_dates,
517 assets,
--> 518 mask,
519 )
520 if term.ndim == 2:

/build/src/qexec_repo/zipline_repo/zipline/pipeline/mixins.pyc in _compute(self, windows, dates, assets, mask) 212 inputs = format_inputs(windows, inputs_mask)
213
--> 214 compute(date, masked_assets, out_row, *inputs, **params)
215 out[idx][out_mask] = out_row
216 return out

/build/src/qexec_repo/zipline_repo/zipline/pipeline/mixins.pyc in compute(self, today, assets, out, *arrays) 145 Override this method with a function that writes a value into out.
146 """
--> 147 raise NotImplementedError()
148
149 def _allocate_output(self, windows, shape):

NotImplementedError:

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The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by Quantopian.

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.