How do i use the finally and else conditions in python?

hawksbill

Also see: https://www.lightnetics.com/post/9888

finally: and else: conditions are used in python to execute alternative statements using else: and finally: always runs.

Start off with this code.

def eh():
    try:
      value = "Hello World!" + 5
    except TypeError:
      print("This is a TypeError, you cannot add a string and int without first converting")
    else:
        print("Great minds think alike")
eh()

We see the output:
This is a TypeError, you cannot add a string and int without first converting

If we correct the TypeError, value = "Hello World!" + 5 into value = "Hello World!" and run it again, the output is:

Great minds think alike

Now let's add the finally: condition: finally: code always gets executed.

def eh():
    try:
      value = "Hello World!"
    except TypeError:
      print("This is an TypeError, you cannot add a string and int without first converting")
    else:
        print("Great minds think alike")
    finally:
        print("Let's get this show on the road")
eh()

The output is:
Great minds think alike
Let's get this show on the road