The program is an illustration of recursive functions in Python;
Recursive functions are functions executed from within itself
The program written in python, where comments are used to explain each action is as follows:
#This defines the function
def revStr(myStr):
  #This returns an empty string if the string is empty
  if myStr == "":
    return myStr
  #If otherwise, this returns the reversed string recursively
  else:
    return revStr(myStr[1:]) + myStr[0]
Read more about python recursions at:
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