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/**

* @name First parameter of a method is not named 'self'

* @description By the PEP8 style guide, the first parameter of a normal method should be named `self`.

* @kind problem

* @tags maintainability

* readability

* convention

* quality

* @problem.severity recommendation

* @sub-severity high

* @precision very-high

* @id py/not-named-self

*/

import python

import MethodArgNames

from Function f, string message

where

firstArgShouldBeNamedSelfAndIsnt(f) and

(

if exists(f.getArgName(0))

then

message =

"Normal methods should have 'self', rather than '" + f.getArgName(0) +

"', as their first parameter."

else

message =

"Normal methods should have at least one parameter (the first of which should be 'self')."

)

select f, message