Notebook

Python Cheat Sheet¶

Basic cheatsheet for Python mostly based on the book written by Al Sweigart, Automate the Boring Stuff with Python under the Creative Commons license and many other sources.

Read It¶

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Exception Handling¶

Basic exception handling¶

In [ ]:

def spam(divideBy):
    try:
        return 42 / divideBy
    except ZeroDivisionError as e:
        print('Error: Invalid argument: {}'.format(e))

print(spam(2))
print(spam(12))
print(spam(0))
print(spam(1))

Final code in exception handling¶

Code inside the finally section is always executed, no matter if an exception has been raised or not, and even if an exception is not caught.

In [ ]:

def spam(divideBy):
    try:
        return 42 / divideBy
    except ZeroDivisionError as e:
        print('Error: Invalid argument: {}'.format(e))
    finally:
        print("-- division finished --")

print(spam(12))
print(spam(0))