stable/freqtrade/main.py

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#!/usr/bin/env python3
"""
Main Freqtrade bot script.
Read the documentation to know what cli arguments you need.
"""
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import sys
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# check min. python version
if sys.version_info < (3, 6):
sys.exit("Freqtrade requires Python version >= 3.6")
# flake8: noqa E402
import logging
from argparse import Namespace
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from typing import Any, List
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from freqtrade import OperationalException
from freqtrade.arguments import Arguments
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from freqtrade.configuration import set_loggers
from freqtrade.worker import Worker
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logger = logging.getLogger('freqtrade')
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def main(sysargv: List[str] = None) -> None:
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"""
This function will initiate the bot and start the trading loop.
:return: None
"""
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return_code: Any = 1
worker = None
try:
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set_loggers()
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arguments = Arguments(
sysargv,
'Free, open source crypto trading bot'
)
args: Namespace = arguments.get_parsed_arg()
# A subcommand has been issued.
# Means if Backtesting or Hyperopt have been called we exit the bot
if hasattr(args, 'func'):
args.func(args)
# TODO: fetch return_code as returned by the command function here
return_code = 0
else:
# Load and run worker
worker = Worker(args)
worker.run()
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except SystemExit as e:
return_code = e
except KeyboardInterrupt:
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logger.info('SIGINT received, aborting ...')
return_code = 0
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except OperationalException as e:
logger.error(str(e))
return_code = 2
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except Exception:
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logger.exception('Fatal exception!')
finally:
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if worker:
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worker.exit()
sys.exit(return_code)
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if __name__ == '__main__':
main()