(cls, message, percentage)
Progress bar handler, called when C{igraph} reports the progress
        of an operation

        @param message: message provided by C{igraph}
        @param percentage: percentage provided by C{igraph}
Progress bar handler, called when C{igraph} reports the progress
        of an operation
Progress bar handler called when C { igraph } reports the progress of an operation
def _progress_handler(cls, message, percentage):
        """Progress bar handler, called when C{igraph} reports the progress
        of an operation

        @param message: message provided by C{igraph}
        @param percentage: percentage provided by C{igraph}
        """
        if percentage >= 100:
            cls.progress_bar.clear()
        else:
            cls.progress_bar.update(percentage, message)
def _progress_handler ( cls , message , percentage ) : if percentage >= 100 : cls . progress_bar . clear ( ) else : cls . progress_bar . update ( percentage , message )