TypeError

[Steve Holden]

joonas wrote:
> 
> I get error, "TypeError: bad operand type(s) for -"
> 
> What could be wrong.
> 
> Joonas.

You're probably doing something daft like

	j = 3 - "fish"

or

	q = "list" - [0,2,1]

The minus operation is only defined on a limited range of data
types, and a TypeError exception is raised when the interpreter
can't figure out how to do the operation.

regards
 Steve
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