We have two variables with the same name, but one is a constructor argument, another one is an instance attribute. PEP-484 is absolutely fine with that, it's do

We have two variables with the same name, but one is a constructor argument, another one is an instance attribute. PEP-484 is absolutely fine with that, it's downsides (and benefits) are purely in the human domain. > allowing variables to be statically typed is a good idea that reduces bugs Not when it comes at the cost of readability. I'd argue more bugs (and definitely more severe bugs) are caused by poor readability than by lack of static types.