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from collections.abc import Mapping
from sqlalchemy import exc
cdef tuple _Empty_Tuple = ()
cdef inline bint _mapping_or_tuple(object value):
return isinstance(value, dict) or isinstance(value, tuple) or isinstance(value, Mapping)
cdef inline bint _check_item(object params) except 0:
cdef object item
cdef bint ret = 1
if params:
item = params[0]
if not _mapping_or_tuple(item):
ret = 0
raise exc.ArgumentError(
"List argument must consist only of tuples or dictionaries"
)
return ret
def _distill_params_20(object params):
if params is None:
return _Empty_Tuple
elif isinstance(params, list) or isinstance(params, tuple):
_check_item(params)
return params
elif isinstance(params, dict) or isinstance(params, Mapping):
return [params]
else:
raise exc.ArgumentError("mapping or list expected for parameters")
def _distill_raw_params(object params):
if params is None:
return _Empty_Tuple
elif isinstance(params, list):
_check_item(params)
return params
elif _mapping_or_tuple(params):
return [params]
else:
raise exc.ArgumentError("mapping or sequence expected for parameters")
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