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# flake8: noqa: E402,F401
from logging import getLogger
from typing import Callable, Iterable, Dict
logger = getLogger(__name__)
# Version is defined in pyproject.toml.
# It's copied here to make it easier for client code to check the installed version.
__version__ = '0.9.0'
def get_placeholder_class(original_exception: Exception = None):
"""Create a placeholder type for a class that does not have dependencies installed.
This allows delaying ImportErrors until init time, rather than at import time.
"""
msg = 'Dependencies are not installed for this feature'
def _log_error():
logger.error(msg)
raise original_exception or ImportError(msg)
class Placeholder:
def __init__(self, *args, **kwargs):
_log_error()
def __getattr__(self, *args, **kwargs):
_log_error()
def dumps(self, *args, **kwargs):
_log_error()
return Placeholder
def get_valid_kwargs(func: Callable, kwargs: Dict, extras: Iterable[str] = None) -> Dict:
"""Get the subset of non-None ``kwargs`` that are valid params for ``func``"""
params = list(signature(func).parameters)
params.extend(extras or [])
return {k: v for k, v in kwargs.items() if k in params and v is not None}
try:
from .backends import *
from .cache_control import *
from .cache_keys import *
from .models import *
from .patcher import *
from .serializers import *
from .session import *
# Log and ignore ImportErrors, if imported outside a virtualenv (e.g., just to check __version__)
except ImportError as e:
logger.warning(e)
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