> Because you don't have to write a lot of boilerplate to tell the language things that it should be able to figure out for itself.
This is exactly my point; compiler can't figure out what kind of data I want, at least not in general. A good example is jQuery $.data() which tries to guess what kind of data you have in your HTML tag attribute. Guess what happens if you have a MongoDB ObjectId (as string), for instance "52259986890d6f24e9000000"? Exactly - it is a floating number. Believe me, it leads to some interesting debugging sessions... :)
I agree with you however that it is beneficial to have a way to set the var to None/null/..., indicating "not initialized". Win some, lose some I guess.
This is exactly my point; compiler can't figure out what kind of data I want, at least not in general. A good example is jQuery $.data() which tries to guess what kind of data you have in your HTML tag attribute. Guess what happens if you have a MongoDB ObjectId (as string), for instance "52259986890d6f24e9000000"? Exactly - it is a floating number. Believe me, it leads to some interesting debugging sessions... :)
I agree with you however that it is beneficial to have a way to set the var to None/null/..., indicating "not initialized". Win some, lose some I guess.