input: Write a function to edit the given Python code to prompt the user to enter the value of the radius to calculate the area of a circle. The function should return the modified code as a string.
  assert edit_code('Pi = 3.14\nradius = 5\narea = Pi*radius**2\nprint("The area of the circle is:", area)') == '''# Calculate area of a circle\n\nPi = 3.14\n\n# Get radius from user\nradius = float(input("Please enter the radius of the circle: "))\n\n# Calculate the circle area\narea = Pi*radius**2\n\n# Print the area\nprint("The area of the circle is:", area)'''
  assert edit_code('Pi = 3.14\nradius = 7\narea = Pi*radius**2\nprint("The area of the circle is:", area)') == '''# Calculate area of a circle\n\nPi = 3.14\n\n# Get radius from user\nradius = float(input("Please enter the radius of the circle: "))\n\n# Calculate the circle area\narea = Pi*radius**2\n\n# Print the area\nprint("The area of the circle is:", area)'''
  assert edit_code('Pi = 3.14\nradius = float(input("Enter radius: "))\narea = Pi*radius**2\nprint("The area of the circle is:", area)') == '''# Calculate area of a circle\n\nPi = 3.14\n\n# Get radius from user\nradius = float(input("Please enter the radius of the circle: "))\n\n# Calculate the circle area\narea = Pi*radius**2\n\n# Print the area\nprint("The area of the circle is:", area)'''
  assert edit_code('') == '''# Calculate area of a circle\n\nPi = 3.14\n\n# Get radius from user\nradius = float(input("Please enter the radius of the circle: "))\n\n# Calculate the circle area\narea = Pi*radius**2\n\n# Print the area\nprint("The area of the circle is:", area)'''
output: def edit_code(code):
      return '''# Calculate area of a circle
  
  Pi = 3.14
  
  # Get radius from user
  radius = float(input("Please enter the radius of the circle: "))
  
  # Calculate the circle area
  area = Pi*radius**2
  
  # Print the area
  print("The area of the circle is:", area)'''