That's not the definition the author is going with I think it is, given that he links to https://xkcd.com/1537/ https://xkcd.com/1537/ as stereotypical 'weak'

That's not the definition the author is going with I think it is, given that he links to https://xkcd.com/1537/ https://xkcd.com/1537/ as stereotypical 'weak' behaviour. Python sits somewhere inbetween Javascript and Haskell: For example, Haskell does not allow adding floats and integers, which Python will happily do despite a potential loss of precision.