human
Solve the following python programming problem given the following code:
def _get_methods(self, vtk_obj) : 
    'Obtain the various methods from the passed object.' 
    def _remove_method(name, methods, method_names) : 
        'Removes methods if they have a particular name.' 
        try : 
            idx = method_names.index (name) 
except ValueError : 
            pass 
else : 
            del methods [idx], method_names [idx] 
return (methods, method_names) 
if (not hasattr (vtk_obj, 'GetClassName')) : 
        return [] 
methods = str (method) 
    methods = methods.split ('
') 
    del methods [0] 
    patn = re.compile ('  \\S') 
    for method in methods [:] : 
        if patn.match (method) : 
            if (method.find (':') == (- 1)) : 
                methods.remove (method) 
else : 
                if (method [1].find ('none') > (- 1)) : 
                    methods.remove (method) 
else : 
            methods.remove (method) 
for method in methods [:] : 
        if (method.strip () [: 6] == 'Props:') : 
            if hasattr (vtk_obj, 'GetViewProps') : 
                methods.remove (method) 
                methods.append ('ViewProps: ') 
else : 
            if (method.strip () [: 5] == 'Prop:') : 
                if hasattr (vtk_obj, 'GetViewProp') : 
                    methods.remove (method) 
                    methods.append ('ViewProp: ') 
method_names = [] 
    for i in range (0, len (methods)) : 
        strng = methods [i].replace (' ', '') 
        methods [i] = strng.split (':') 
        method_names.append (methods [i] [0]) 
if re.match ('vtk\\w*Renderer', vtk_obj.GetClassName ()) : 
        methods.append (['ActiveCamera', '']) 
if re.match ('vtk\\w*Assembly', vtk_obj.GetClassName ()) : 
        methods.append (['Parts', '']) 
        methods.append (['Volumes', '']) 
        methods.append (['Actors', '']) 
if vtk_obj.IsA ('vtkAbstractTransform') : 
        if (self.last_transform > 0) : 
            _remove_method ('Inverse', methods, method_names) 
else : 
            self.last_transform += 1 
else : 
        self.last_transform = 0 
for name...

    
    

    Fix the buggy line: methods = str (method)
assistant
#Here is Python program to find (':') == (- 1)) : 
.

methods = str (vtk_obj)