[Python-Dev] Error message for wrong number of arguments

[Jeroen Demeyer]

Actually, I just realized that it's not really possible to fix the error 
messages for built-in methods. The problem is that Argument Clinic does 
not know whether a function or method is being handled. For example, 
there is no indication at all that this is a method (note that the name 
"list.insert" might refer to a function "insert" inside a module called 
"list" or a method "insert" or a class "list"):

/*[clinic input]
list.insert

     index: Py_ssize_t
     object: object
     /

Insert object before index.
[clinic start generated code]*/