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I agree, the standard library doesn't have those problems. As you said though, the ecosystem is kind of the point of using Python in the first place.

Again, I'm not really a fan of Python as a general purpose language for large projects, but it really, really excels at being a kind of "universal glue", and it's why I use it again and again.

In that role, "uniformly slow" is better than "performance rollercoaster".