Import not working

[CTOlet]

For command below

jesse import-candles 'Binance' 'BTCUSDT' '2018-01-01'

Exception thrown

============================== EXCEPTION TRACEBACK:
  File "/Users/alimzhan/.pyenv/versions/3.7.4/bin/jesse", line 8, in <module>
    sys.exit(cli())
  File "/Users/alimzhan/.pyenv/versions/3.7.4/lib/python3.7/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/Users/alimzhan/.pyenv/versions/3.7.4/lib/python3.7/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/Users/alimzhan/.pyenv/versions/3.7.4/lib/python3.7/site-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/alimzhan/.pyenv/versions/3.7.4/lib/python3.7/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/alimzhan/.pyenv/versions/3.7.4/lib/python3.7/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/Users/alimzhan/.pyenv/versions/3.7.4/lib/python3.7/site-packages/jesse/__init__.py", line 250, in import_candles
    import_candles_mode.run(exchange, symbol, start_date)
  File "/Users/alimzhan/.pyenv/versions/3.7.4/lib/python3.7/site-packages/jesse/modes/import_candles_mode/__init__.py", line 113, in run
    candles = _fill_absent_candles(candles, temp_start_timestamp, temp_end_timestamp)
  File "/Users/alimzhan/.pyenv/versions/3.7.4/lib/python3.7/site-packages/jesse/modes/import_candles_mode/__init__.py", line 251, in _fill_absent_candles
    raise ValueError('No candles were sent')
=========================================================================

 Uncaught Exception: ValueError: No candles were sent

[Gabri]

Hello @nemmo, it's possibile that Binance has not enough data (1m candle), try with 2018-06-01

[saleh-old]

I confirm what @Gabri said is true. I'll update the exception message to be more informative.

[CTOlet]

@saleh-mir I think it would be better if you add a cli option like --force to skip all the gaps

[saleh-old]

The thing is gaps will break backtests. What I have done instead is:

When there’s missing candles for days, it Jesse tries fetching from a backup exchange. For example if you try importing from Bitfinex, you won’t get that error because it’ll try filling those gaps with candles from Coinbase behind the scenes.

However I have not enabled this feature for Binance yet because I don’t know any exchange that allows trading tether pairs other than Binance.