Better error handling #509
Description
Currently if the callable provider fails due to missing arguments or other errors, it may be hard to find out which guy is missing arguments if one provider is being referred many times.
src/dependency_injector/providers.pxd:422: in dependency_injector.providers.__provide_keyword_args
???
src/dependency_injector/providers.pxd:345: in dependency_injector.providers.__get_value
???
src/dependency_injector/providers.pyx:195: in dependency_injector.providers.Provider.__call__
???
src/dependency_injector/providers.pyx:197: in dependency_injector.providers.Provider.__call__
???
src/dependency_injector/providers.pyx:2755: in dependency_injector.providers.Singleton._provide
???
src/dependency_injector/providers.pxd:620: in dependency_injector.providers.__factory_call
???
src/dependency_injector/providers.pxd:606: in dependency_injector.providers.__callable_call
???
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> ???
E TypeError: __init__() missing 1 required positional argument: 'config'
src/dependency_injector/providers.pxd:579: TypeErrorit may be hard to find out which __init__, consider re-raise the exception with the function reference