ValueError when importing candles

janezlapajne

Hello, in the past I already had a working jesse backtest. Now, something has changed and I got some errors. Because I didn't find the solution in quite some time of trying I decided to reinstall the whole thing. Right now I set up everything as described in the installation manual. I also created a new strategy. Then I executed a command:
jesse import-candles Binance BTCUSD 2019-01-01
which shows a message: Importing 733 days candles from "Binance" for "BTCUSD". Duplicates will be skipped. All good? [Y/n]

after affirming Y it shows me an error: Uncaught Exception: ValueError: Invalid symbol.
Image

Does anyone have an idea what I did wrong? Thanks in advance.

Gabri

janezlapajne if you are using the latest version has changed the pair "signature", now you need to use, in your case, BTC-USD. Pay attantion that either you need to reimport candles or you need to update on candle table on DB. See release notes : https://forum.jesse.trade/d/204-v0180-is-released-contains-important-breaking-changes

janezlapajne

Thank you for your reply, but this does not help. The input stays the same:
image

I also deleted the database and created a new one. Do you maybe have other suggestions on why this thing doesn't work?
Where does Jesse store those candles and how can I tell it that I need to overwrite them? I uninstalled Postgress and deleted the data folder and reinstalled it again with no luck.
🙂

Also, why are in documentation candles are imported with quotation marks as:
jesse import-candles 'Binance' 'BTC-USDT' '2018-06-01'

is there a difference, because this throws me a different error:
image
Thank you!

Gabri

janezlapajne I think the problem could be simply that you checked for BTC-USD but for Binance you have to use BTC-USDT

janezlapajne

Hello,
thank you, that worked. Sorry for late reply 🙂

For anyone who has the same problem, this worked for me:
jesse import-candles Binance BTC-USDT 2019-01-01
Someone should edit documentation under Importing candles section.

adamwaite

janezlapajne The docs are open source 🙂