| Unsophisticated interface to a running gnuplot program.    See gp_unix.py for usage information. 
        
            | Methods |  |  
        | __call__ __init__
 
 |  
            |  | __call__ |  
        | 
__call__ ( self,  s )
 Send a command string to gnuplot, followed by newline. |  
            |  | __init__ |  
        | 
__init__ ( self,  persist=0 )
 Start a gnuplot process.        Create a GnuplotProcessobject.  This starts a gnuplot
        program and prepares to write commands to it.         Keyword arguments:
            persistthe -persistoption is not supported under
                Windows so this argument must be zero. 
        
            | Exceptions |  |  
        | Errors.OptionError( '-persist is not supported under Windows!' ) 
 |  |  |