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move check_exchange to exchange package

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Matthias
2022-10-04 18:25:23 +02:00
parent a6296be2f5
commit 68db0bc647
5 changed files with 73 additions and 64 deletions
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1
freqtrade/configuration/__init__.py
View File

@@ -1,6 +1,5 @@
# flake8: noqa: F401
from freqtrade.configuration.check_exchange import check_exchange
from freqtrade.configuration.config_setup import setup_utils_configuration
from freqtrade.configuration.config_validation import validate_config_consistency
from freqtrade.configuration.configuration import Configuration

65
freqtrade/configuration/check_exchange.py
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@@ -1,65 +0,0 @@
import logging
from freqtrade.constants import Config
from freqtrade.enums import RunMode
from freqtrade.exceptions import OperationalException
from freqtrade.exchange import (available_exchanges, is_exchange_known_ccxt,
is_exchange_officially_supported, validate_exchange)
logger = logging.getLogger(__name__)
def check_exchange(config: Config, check_for_bad: bool = True) -> bool:
"""
Check if the exchange name in the config file is supported by Freqtrade
:param check_for_bad: if True, check the exchange against the list of known 'bad'
exchanges
:return: False if exchange is 'bad', i.e. is known to work with the bot with
critical issues or does not work at all, crashes, etc. True otherwise.
raises an exception if the exchange if not supported by ccxt
and thus is not known for the Freqtrade at all.
"""
if (config['runmode'] in [RunMode.PLOT, RunMode.UTIL_NO_EXCHANGE, RunMode.OTHER]
and not config.get('exchange', {}).get('name')):
# Skip checking exchange in plot mode, since it requires no exchange
return True
logger.info("Checking exchange...")
exchange = config.get('exchange', {}).get('name', '').lower()
if not exchange:
raise OperationalException(
f'This command requires a configured exchange. You should either use '
f'`--exchange <exchange_name>` or specify a configuration file via `--config`.\n'
f'The following exchanges are available for Freqtrade: '
f'{", ".join(available_exchanges())}'
)
if not is_exchange_known_ccxt(exchange):
raise OperationalException(
f'Exchange "{exchange}" is not known to the ccxt library '
f'and therefore not available for the bot.\n'
f'The following exchanges are available for Freqtrade: '
f'{", ".join(available_exchanges())}'
)
valid, reason = validate_exchange(exchange)
if not valid:
if check_for_bad:
raise OperationalException(f'Exchange "{exchange}" will not work with Freqtrade. '
f'Reason: {reason}')
else:
logger.warning(f'Exchange "{exchange}" will not work with Freqtrade. Reason: {reason}')
if is_exchange_officially_supported(exchange):
logger.info(f'Exchange "{exchange}" is officially supported '
f'by the Freqtrade development team.')
else:
logger.warning(f'Exchange "{exchange}" is known to the the ccxt library, '
f'available for the bot, but not officially supported '
f'by the Freqtrade development team. '
f'It may work flawlessly (please report back) or have serious issues. '
f'Use it at your own discretion.')
return True

4
freqtrade/configuration/configuration.py
View File

@@ -8,7 +8,6 @@ from pathlib import Path
from typing import Any, Callable, Dict, List, Optional
from freqtrade import constants
from freqtrade.configuration.check_exchange import check_exchange
from freqtrade.configuration.deprecated_settings import process_temporary_deprecated_settings
from freqtrade.configuration.directory_operations import create_datadir, create_userdata_dir
from freqtrade.configuration.environment_vars import enironment_vars_to_dict
@@ -100,6 +99,9 @@ class Configuration:
self._process_freqai_options(config)
# Import check_exchange here to avoid import cycle problems
from freqtrade.exchange.check_exchange import check_exchange
# Check if the exchange set by the user is supported
check_exchange(config, config.get('experimental', {}).get('block_bad_exchanges', True))