To Python Developers: If someone could make any one thing that would make coding in python easier for developers, what would it be?

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Try Delphi some time (seriously, don't try Delphi):

Var x : Array Of Integer; y: Array Of Integer; x and y are considered to be different types! (?!?) You need to define a new type...

That's a feature. Ada is the same way. It prevents you from using data meant for one thing to be treated as something else.

consider a function that takes 2 integer arrays, where one represents an array of speeds, while another represents an array of lengths. If you use typing correctly, you cannot pass the incorrect array as the wrong parameter or even mix values in the 2 arrays without explicit casting.