The Try ... Except Block

The Try Block

Most programming languages have a way to take care of errors while running a program, usually with some code that tells the interpreter to ignore errors. Python's way is with the try block. Here's how it works:

try:

  code...

For example, try running the code below:

"Number: " + 2

Python will produce an error. However, try this:

try:

  "Number: " + 2

Python doesn't produce an error. That's because it ran the code inside the try block and saw an error. It then skipped the rest of the code inside the try block and stopped itself from producing an error.

The Try ... Except Block

What if we have code that we only want to run when there is an error? Fortunately, Python includes a solution called the try ... except block. Here's the format:

try:

  code...

except:

  code to run if there is an error...

The code in the except block only runs if an error occurs.