3rd party package maintainers usually don't do as good a job of maintaining backwards compatibility or doing it right as do the core library maintainers, thats

3rd party package maintainers usually don't do as good a job of maintaining backwards compatibility or doing it right as do the core library maintainers, thats why you were able to upgrade from 2 to 3 by changing print to print() but then sometimes dependencies you install with pip break for inexplicable reasons.