Programming in Python/

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Inner Functions, Scope, and the LEGB Rule

Inner Functions, Scope, and the LEGB Rule

Learn about the scope of inner functions and the LEGB rule in Python.

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Inner functions

An inner function is simply a function that is defined inside another function. The following program shows how to do this:

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# outer function
def display( ) :
  a = 500
  print ('Saving is the best thing...')
  # inner function
  def show( ) :
    print ('Especially when your parents have done it for you!')
    print(a)
    
  show( )
display( )

In the code above, show() is the inner function defined inside display(). Therefore, it can only be called from within display(). In that ...