Comments (5)
Adding more information about this issue:
the file that holds the benchmark (~/.catalyst/data/USDT_BTC_benchmark.csv) is empty
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Exact same issue here. I believe Zipline (which this is based on) had a similar issue when I tried to use it - due to either Google Finance or Yahoo Finance shutting down an API?
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This issue appears to be caused by failure of previous data handling ops. It can be worked around with the following procedure.
- Must use Python version 2.7.x due to some compatibility issues in file opens in curate/poloniex.py it appears.
- rm -rf /var/tmp/catalyst
- rm -rf ~/.catalyst
- catalyst ingest
- catalyst run ...
After chasing this around a bit, it seems that we are only checking for existence of files rather than whether the file has valid content before moving to next step of data curation.
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Changed the title of this issue since I have now recreated it on Linux.
If a catalyst run
fails, it may leave an empty file in /var/tmp/catalyst/data/poloniex/crypto_prices-USDT_BTC.csv.
This empty file will prevent any future runs from succeeding. This appears to be because we are not handling an existing empty file error condition.
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Addressed in commit a01bcd5, which is part of 0.1.dev7 release: 20a98a3 in the master branch.
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