The Python Apprentice

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 doesn't ...