mostly joking - your complaints are big problems in python. Dependency management in Go has been contentious (historically) with "to vendor or not to vendor", glide and dep, GOPATH, etc. But that is all solved. Go mod for the win.
As far as "the nightmare of {using interfaces}" -- I have no clue to any controversy there. It is one of the most celebrated features of Go. Not sure where you were going with that. In Python, I do find duck typing to be a nightmare because you don't actually _know_ what you have. Can you change it? Try it and if it breaks you will know. Or you use it like a list but it is a string and that gives strange, unexpected behavior, so you end up doing things like `param=force_list(maybe_string_or_list)`.
The Python typing nightmares you refer to go away on large projects as soon as you start using mypy, which I tend to find most large projects do these days.
So yes, you can change that string and you do know.
It's still better that it's optional and gradual - it's unnecessary overhead on smaller projects, spikes, notebooks, etc. which are what most big projects grow out of.
Python typing nightmares definitely do not just go away with the use of mypy. There are so so many ways to break out of the guardrails it supplies that are not caught.
As far as "the nightmare of {using interfaces}" -- I have no clue to any controversy there. It is one of the most celebrated features of Go. Not sure where you were going with that. In Python, I do find duck typing to be a nightmare because you don't actually _know_ what you have. Can you change it? Try it and if it breaks you will know. Or you use it like a list but it is a string and that gives strange, unexpected behavior, so you end up doing things like `param=force_list(maybe_string_or_list)`.