Cannot run a `screener` locally

Description

Intro

What you are doing is amazing! A unified API for trades is hard to accomplish! Kudos to you!

This screener error

I am writing a 'conditional grid' trader bot.

If someTicker is unusually volatile, (ATR > 0.85) Then activate grid trading funciton. Else, just hold and do nothing.

Unfortunately, I must utilize a Screener to scan many different tickers, ["BTC-USD","ETH-USD","LTC-USD"] and I always get this error despite installing all the dependencies, (croniter). What else can I try to do to run a screener locally? I cannot find a solution in the documentation. Am I missing something?

settings.json

{
    "settings": {
        "use_sandbox_websockets": false,
        "websocket_buffer_size": 10000,
        "test_connectivity_on_auth": true,
        "coinbase_pro": {
            "cash": "USD"
        },
        "binance": {
            "cash": "USD",
            "binance_tld": "us"
        },
        "alpaca": {
            "websocket_stream": "iex",
            "cash": "USD",
            "enable_shorting": true,
            "use_yfinance": false
        },
        "oanda": {
            "cash": "USD"
        },
        "keyless": {
            "cash": "USD"
        },
        "ftx": {
            "cash": "USD",
            "ftx_tld": "com"
        },
        "ftx_futures": {
            "cash": "USD",
            "ftx_tld": "com"
        },
        "kucoin": {
            "cash": "USDT"
        }
    }
}

backtest.json (if applicable)

{
    "price_data": {
        "assets": []
    },
    "settings": {
        "use_price": "close",
        "smooth_prices": false,
        "GUI_output": true,
        "show_tickers_with_zero_delta": false,
        "save_initial_account_value": true,
        "show_progress_during_backtest": true,
        "cache_location": "./price_caches",
        "continuous_caching": true,
        "resample_account_value_for_metrics": "1d",
        "quote_account_value_in": "USD",
        "ignore_user_exceptions": true,
        "risk_free_return_rate": 0.0,
        "benchmark_symbol": null
    }
}

Error (if applicable)

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
/tmp/ipykernel_5114/2898991751.py in <module>
      8 
      9 print(tickers)
---> 10 _screener = Screener(paperCoinbase,is_ticker_volitile,atickers,init=init)
     11 

~/.local/share/virtualenvs/blanklys-vrA71F_1/lib/python3.7/site-packages/blankly/frameworks/screener/screener.py in __init__(self, exchange, evaluator, symbols, init, final, formatter)
     62         if not blankly.is_deployed and blankly._screener_runner is None:
     63             cron_settings = load_deployment_settings()['screener']['schedule']
---> 64             blankly._screener_runner = ScreenerRunner(cron_settings)
     65 
     66         # TODO export the symbols here as a list

~/.local/share/virtualenvs/blanklys-vrA71F_1/lib/python3.7/site-packages/blankly/frameworks/screener/screener_runner.py in __init__(self, cronjob)
     33         except ImportError:
     34             raise ImportError("To run screeners locally, please \"pip install croniter\".")
---> 35         self.__main = __main__.__file__
     36 
     37         self.croniter = self.croniter(cronjob, datetime.datetime.fromtimestamp(time.time()).astimezone(timezone.utc))

AttributeError: module '__main__' has no attribute '__file__'

Platform Info

Python version: 3.7.3 & 3.7
Platform: Debian Linux on a Lenovo Core i3 Chromebook. & Guarda (Arch) Linux PC Ryzen 2400G

blankly-finance / blankly