&gt; It&#x27;s quite rare that I&#x27;ve encountered a type error in a Python program.<p>What is your definition of a type error?  The point of more advanced type systems is to allow programmers to express more information about the program in the types so that the compiler can check them and report mistakes.  I&#x27;ve done my share of Python coding and many of my errors were definitely type errors (even if they didn&#x27;t necessarily raise TypeError).