Description
Dear Zipline Maintainers,
Environment
- Operating System: Ubuntu 18.04.2(Linux gcp-vm-001 4.15.0-1033-gcp Allows the capital base of an algorithm to be more easily modified. #35-Ubuntu SMP Fri May 17 13:27:54 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux)
- Python Version: Python 3.5.7
- Python Bitness: 64 bit
- How did you install Zipline: 'pip install zipline'
- Python packages:
alembic==1.0.10
attrs==19.1.0
backcall==0.1.0
bcolz==0.12.1
bleach==3.1.0
Bottleneck==1.2.1
certifi==2019.3.9
chardet==3.0.4
Click==7.0
contextlib2==0.5.5
cycler==0.10.0
cyordereddict==1.0.0
Cython==0.29.9
decorator==4.4.0
defusedxml==0.6.0
empyrical==0.5.0
entrypoints==0.3
idna==2.8
intervaltree==3.0.2
ipykernel==5.1.1
ipython==7.5.0
ipython-genutils==0.2.0
ipywidgets==7.4.2
jedi==0.13.3
Jinja2==2.10.1
jsonschema==3.0.1
jupyter==1.0.0
jupyter-client==5.2.4
jupyter-console==6.0.0
jupyter-core==4.4.0
kiwisolver==1.1.0
Logbook==1.4.3
lru-dict==1.1.6
lxml==4.3.3
Mako==1.0.10
MarkupSafe==1.1.1
matplotlib==3.0.3
mistune==0.8.4
mock==3.0.5
multipledispatch==0.6.0
nbconvert==5.5.0
nbformat==4.4.0
networkx==1.11
notebook==5.7.8
numexpr==2.6.9
numpy==1.16.4
pandas==0.22.0
pandas-datareader==0.7.0
pandocfilters==1.4.2
parso==0.4.0
patsy==0.5.1
pexpect==4.7.0
pickleshare==0.7.5
prometheus-client==0.6.0
prompt-toolkit==2.0.9
ptyprocess==0.6.0
Pygments==2.4.2
pyparsing==2.4.0
pyrsistent==0.15.2
python-dateutil==2.8.0
python-editor==1.0.4
pytz==2019.1
pyzmq==18.0.1
qtconsole==4.5.1
requests==2.22.0
requests-file==1.4.3
scipy==1.3.0
Send2Trash==1.5.0
six==1.12.0
sortedcontainers==2.1.0
SQLAlchemy==1.3.4
statsmodels==0.9.0
tables==3.5.2
terminado==0.8.2
testpath==0.4.2
toolz==0.9.0
tornado==6.0.2
trading-calendars==1.8.0
traitlets==4.3.2
urllib3==1.25.3
wcwidth==0.1.7
webencodings==0.5.1
widgetsnbextension==3.4.2
wrapt==1.11.1
zipline==1.3.0
Description of Issue
My zipline back testing script worked well 2 or 3 days ago.
But, last weekend, the script showed "JSONDecodeError".
You can see the detail error and source code in the attached text files.
Reproduction Steps
- Just re-run the script
...
What steps have you taken to resolve this already?
I called the "TradingAlgorithm()" in the ipython console without or with parameters. It showed same error always.
In [4]: algo=TradingAlgorithm() or
In [5]: TradingAlgorithm() or
In [6]: algo = TradingAlgorithm(sim_params=create_simulation_parameters(capital_base=1000000000,trading_calendar=xkrx),initialize=initialize,handle_data=handle_data,trading_calendar=xkrx)
Anything else?
I think that this issue maybe related to the following issue.
#2480
Although, I referenced the this issue, I am not using IEX as a data source. Attached "DataDownloader.txt" is the download script and using Yahoo.
Sincerely,
SeungYong
zipline-json-error.txt
zipline-MR.txt
DataDownloader.txt
Activity
SeungYong-Baek commentedon Jun 18, 2019
MarikoKujo commentedon Jun 18, 2019
@SeungYong-Baek
Sorry for deleting my earlier reply, because I found that I mistook my cached benchmark file with a newly created one.
If you do not need benchmark in your backtests, you can try this hack.
rwuebker commentedon Jun 26, 2019
I'm getting the same issue with python 3.5.6 and zipline 1.3.0. Any ideas? I'm using the quandl data bundle. -Thanks.
bozzlab commentedon Jun 27, 2019
I'm getting same issue too, With Python 3.6.8
Now, When i run any command from zipline, It's got this error always.
jonathanmiller2 commentedon Jul 2, 2019
Same issue, trying to run zipline using jupyter notebooks
SeungYong-Baek commentedon Jul 2, 2019
@rwuebker
@bozzlab
@jonathanmiller2
Some fix which is mentioned at the issue #2480 works for my script.
I used the IEXCLOUD API.
Thank you.
SongJiaxin95 commentedon Jul 24, 2019
I'm getting the same issue with python 3.5.6 and zipline 1.3.0,How to reduce version installation？
jecker7 commentedon Jul 30, 2019
Still getting this issue with Python 3.6.8 and zipline 1.3.0, so I downgraded zipline to 1.2.0, but still getting the same error with 1.2.0.
steviesteveston commentedon Aug 1, 2019
I have the same problem, tried Python 2.7 and 3.5
filippo-ciceri commentedon Aug 16, 2019
I have the same problem and I am using zipline 1.30 and python 2.7 (jupyter notebook).
filippo-ciceri commentedon Aug 16, 2019
this works!
zoakes commentedon Nov 20, 2019
Hey guys, I'm a bit late, but same issue with the code --
Here's my output:
JSONDecodeError: Expecting value: line 1 column 1 (char 0)
daraul commentedon Jan 20, 2020
Is there ever going to be an official response to this problem?
zoakes commentedon Jan 20, 2020
daraul commentedon Jan 20, 2020
FWIW the fixes suggested here worked for me: https://stackoverflow.com/a/58661288/3403924 (ignore step 3, though)
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