mirror of
https://github.com/freqtrade/freqtrade.git
synced 2024-11-10 18:23:55 +00:00
60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
# pragma pylint: disable=attribute-defined-outside-init
|
|
|
|
"""
|
|
This module load custom hyperopts
|
|
"""
|
|
import logging
|
|
from pathlib import Path
|
|
|
|
from freqtrade.pairlist.IPairList import IPairList
|
|
from freqtrade.resolvers import IResolver
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class PairListResolver(IResolver):
|
|
"""
|
|
This class contains all the logic to load custom hyperopt class
|
|
"""
|
|
|
|
__slots__ = ['pairlist']
|
|
|
|
def __init__(self, pairlist_name: str, freqtrade, config: dict) -> None:
|
|
"""
|
|
Load the custom class from config parameter
|
|
:param config: configuration dictionary or None
|
|
"""
|
|
self.pairlist = self._load_pairlist(pairlist_name, kwargs={'freqtrade': freqtrade,
|
|
'config': config})
|
|
|
|
def _load_pairlist(
|
|
self, pairlist_name: str, kwargs: dict) -> IPairList:
|
|
"""
|
|
Search and loads the specified pairlist.
|
|
:param pairlist_name: name of the module to import
|
|
:param extra_dir: additional directory to search for the given pairlist
|
|
:return: PairList instance or None
|
|
"""
|
|
current_path = Path(__file__).parent.parent.joinpath('pairlist').resolve()
|
|
|
|
abs_paths = [
|
|
current_path.parent.parent.joinpath('user_data/pairlist'),
|
|
current_path,
|
|
]
|
|
|
|
for _path in abs_paths:
|
|
try:
|
|
pairlist = self._search_object(directory=_path, object_type=IPairList,
|
|
object_name=pairlist_name,
|
|
kwargs=kwargs)
|
|
if pairlist:
|
|
logger.info("Using resolved pairlist %s from '%s'", pairlist_name, _path)
|
|
return pairlist
|
|
except FileNotFoundError:
|
|
logger.warning('Path "%s" does not exist', _path.relative_to(Path.cwd()))
|
|
|
|
raise ImportError(
|
|
"Impossible to load Pairlist '{}'. This class does not exist"
|
|
" or contains Python code errors".format(pairlist_name)
|
|
)
|