noob question: "TypeError" wrong number of args

Fredrik Lundh fredrik at pythonware.com
Mon May 1 13:44:12 CEST 2006


Holger wrote:

> Tried searching for a solution to this, but the error message is so
> generic, that I could not get any meaningfull results.
>
> Anyways - errormessage:
> ----------------------------------------------------
> TypeError: addFile() takes exactly 1 argument (2 given)
> ----------------------------------------------------
>
> The script is run with two args "arg1" and "arg2":
> ----------------------------------------------------
> import sys
>
> class KeyBase:
>     def addFile(file):
>         print "initialize the base with lines from this file"

when defining your own classes, you must spell out the "self"
argument in your method definitions:

    def addFile(self, file):
        print "initialize the base with lines from this file"

see:

    http://pyfaq.infogami.com/what-is-self

</F>






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