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Relevant functions: break, return, limit, quit/exit.

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Return multiple values: code:
         
Output:         
         

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Return value to outside of the funtion: code:
         
Output:         
         

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Access variable inside a function by using return statement, access variable inside a function locally, and access outside variable through a function: code:
         
Output:         
         
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Both below have a similar function:

Divide argument a by argument b, and return the result: code:
        
Output:
        2.0

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Divide argument a by argument b, and return the result: code:
        
Output:
        2.0

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The returned value is 0: code:
        
Output:
       The returned value is 0

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The returned value is 0: code:
        
Output:
       The returned value is None

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The returned value is from the defined function: code:
        
Output:
      

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The returned value is from the defined function: code:
        
Output:
         n is 10.2
         m is 0.09411764705882353

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Sum the numbers of a defined list: code:
         
Output:         
         23

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Use decorators: code:
         
Output:         
         

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Comparison between iterative algorithm and recursive algorithm: code:          
         
Output:         
         

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Use of "return" to stop infinite cycling of opening the same images:
         

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Access a single variable inside a function: Code:
         
Output:         
         

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Access a dictionary inside a function: Code:
         
Output:         
         

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Global Access to the returned local variable only: Code:
         
Output:         
         

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AAA. Send a variable or a updated variable back to a script in a child folder, and send a variable or a updated variable back to a script in its parent folder. Code in Parent folder:
                  
      Code in Child folder ("MyChildFolder"):         
         
   Output, obtained by executing the code in Parent folder, with the execution steps P1, P2, ... P16:         
         
   Output, obtained by executing the code in Child folder ("MyChildFolder"), with the execution steps C1, C2, ..., C19:            
         

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