Handling multiple exceptions

Each try block can have multiple corresponding except blocks which intercept exceptions of different types. Let's add a handler for TypeError too:

def convert(s):
    """Convert a string to an integer."""
    try:
        x = int(s)
        print("Conversion succeeded! x =", x)
    except ValueError:
        print("Conversion failed!")
        x = -1
    except TypeError:
        print("Conversion failed!")
        x = -1
    return x

Now if we re-run the same test in a fresh REPL we find that TypeError is handled too:

>>> from exceptional import convert
>>> convert([1, 3, 19])
Conversion failed!
-1

We've got some code duplication between our two exception handlers with that duplicated print statement and assignment. We'll move the assignment in front of the try block, which...