How to RAISE an Exception in Python? (Traceback in Python) - Python Tutorial for Beginners

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🖥️ How to Raise and Throw an Exception in Python? (Traceback in Python)

In Python programming, exceptions are raised when errors occur at runtime. But, as a Python developer, you can also choose to manually throw an exception, if a condition is met - and at any time. To raise such an exception, use the RAISE reserved keyword.

This statement RAISE in Python can be complemented with a Custom Exception. You can optionally define what kind of error to raise, and pass values to the exception to clarify why that exception was raised. Then, the program comes to a halt and it displays your exception to screen - offering clues about what went wrong and help debugging.

# Raise built-in exception 'NameError'
raise NameError('An exception occured!')

# Output:
# Traceback (most recent call last):
# File "stdin", line 1, in module
# NameError: An exception occured!

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[PassionsByCath]

Merci pour cette vidéo très instructive prof :-)