I think Python definitely has its drawbacks, and it's not fast. The other downsides listed in that article (whitespace, variable scoping, lambdas, mobile, etc.) may also be get in your way sometimes, but seems doubtful that they are language killers...I agree the argument presented in that article is weak.
I'm biased, but I think Python as your daily driver language is a great choice.
I'm biased, but I think Python as your daily driver language is a great choice.