AI engineering glossary · Python core

What is typeError?

TypeError: A built-in exception raised when an operation is applied to an object of the wrong type, such as adding a string to an integer or calling a non-callable. Reading the message tells you which types were involved, which usually points straight at the faulty line.

Level: beginnerTopic: Python core

TypeError: an example

'age: ' + 25 raises TypeError; the fix is 'age: ' + str(25).

Related terms

More Python core terms

Where you learn it

TypeError is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.

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