Advice on learning Python efficiently

Re:Advice on learning Python efficiently by tim333 on Thursday December 15, 2016 @07:16PM (#13189990)

I noted the in first example in the linked into - Python:

    def square(n):
      return n * n

Pyret:

    fun square(n :: Number) -> Number:
      n * n
    end

there's extra stuff. It also kind of loses the elegance of Python reading close to normal language - if you don't know programing but can do math you'd figure the first was define a function that gives a square but be confused what (n :: Number) -> Number: was about.

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Re:Advice on learning Python efficiently by jpolitz on Thursday December 15, 2016 @09:46PM (#13190682)

The type annotations are optional, so

    fun square(n):
      n * n
    end

is a closer direct comparison to the Python program, for contexts that don't use annotations.

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