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It means you are trying to perform an operation with an incompatible type. Without knowing what code caused the error it's impossible to give an explicit answer, however a typical example of a type error is that you've attempted to perform an arithmetic operation upon a non-numeric value such as a string. E.g., "hello world" * 42 makes no sense in the real world because "hello world" is a non-numeric value and is therefore incompatible with the multiply operator.
Type errors are common when working with unchecked input. That is, you expect the user to enter a number but they enter a letter instead. If you don't test for this, errors are the inevitable consequence.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoThis error arises when attempting to perform an operation or function on an object of inappropriate type.
For example
s = "this is a string"
s - 1
Traceback (most recent call last):
File "/answers-example.py", line 2, in
s - 1
TypeError: unsupported operand type(s) for -: 'str' and 'int'
Subtracting 1 (an int) from a string (str) is not a valid operation.
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