MapExportTools.py
def updateMessages(self, parameters):
        """Modify the messages created by internal validation for each tool
        parameter.  This method is called after internal validation."""
        if parameters[1].altered:
            if len(parameters[3].filter.list) == 0:
                parameters[1].setErrorMessage("This map document has no bookmarks!")
        if parameters[0].altered & parameters[0].value is True:
            if len(parameters[3].filter.list) == 0:
                parameters[0].setErrorMessage("This map document has no bookmarks!")
        return
Modify the messages created by internal validation for each tool
        parameter.  This method is called after internal validation.
Modify the messages created by internal validation for each tool
parameter.  This method is called after internal validation.
Modify the messages created by internal validation for each tool parameter . This method is called after internal validation .
def updateMessages(self, parameters):
        if parameters[1].altered:
            if len(parameters[3].filter.list) == 0:
                parameters[1].setErrorMessage("This map document has no bookmarks!")
        if parameters[0].altered & parameters[0].value is True:
            if len(parameters[3].filter.list) == 0:
                parameters[0].setErrorMessage("This map document has no bookmarks!")
        return
def updateMessages ( self , parameters ) : if parameters [ 1 ] . altered : if len ( parameters [ 3 ] . filter . list ) == 0 : parameters [ 1 ] . setErrorMessage ( "This map document has no bookmarks!" ) if parameters [ 0 ] . altered & parameters [ 0 ] . value is True : if len ( parameters [ 3 ] . filter . list ) == 0 : parameters [ 0 ] . setErrorMessage ( "This map document has no bookmarks!" ) return
Modify the messages created by internal validation for each tool
parameter.
Modify the messages created by internal validation for each tool parameter .
"""Modify the messages created by internal validation for each tool
        parameter.  This method is called after internal validation."""
self
parameters