since create_engine deals with class constructors, i went with this
approach:
def get_cls_kwargs(cls):
"""return the full set of legal kwargs for the given cls"""
kw = []
for c in cls.__mro__:
cons = c.__init__
if hasattr(cons, 'func_code'):
for vn in cons.func_code.co_varnames:
if vn != 'self':
kw.append(vn)
return kw
so now you get these luxurious TypeErrors if you send any combination
of invalid arguments:
TypeError: Invalid argument(s) 'lala','hoho' sent to create_engine(),
using configuration PGDialect/QueuePool/Engine. Please check that the
keyword arguments are appropriate for this combination of components.
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