Test if a condition returns True:
x = "hello"
#if condition returns True, then nothing happens:
assert x == "hello"
#if condition returns False, AssertionError is raised:
assert x == "goodbye"
Try it Yourself » Definition and UsageThe assert keyword is used when debugging code.
The assert keyword lets you test if a condition in your code returns True, if not, the program will raise an AssertionError.
You can write a message to be written if the code returns False, check the example below.
More Examples ExampleWrite a message if the condition is False:
x = "welcome"
#if condition returns False, AssertionError is raised:
assert x != "welcome", "x should not be 'welcome'"
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