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A comment on Why Python is Slow: Looking Under the Hood. Parent comment

Re:Why Python is Slow: Looking Under the Hood by lispm on Saturday May 10, 2014 @03:50AM (#7724793)
To find undefined slots or undefined functions, you don't need a type system. A competent compiler is sufficient.
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Re:Why Python is Slow: Looking Under the Hood by yogsototh on Saturday May 10, 2014 @08:48AM (#7725204)
The type system enforce some kind of usage.

    myObject[ someFunction() ] = 1;
No compiler in the world would be able to detect if myObject.field should exists or not.

In a (good) type system oriented language, you have to declare that myObject is a Map, and therefore when you want to access "field" you know this access could be "Nothing". The type system alert you if you don't handle the "Nothing" value.

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