def _draw_background(self, divisions=<NUM_LIT:10>):
self.canvas.create_arc(<NUM_LIT:2>, <NUM_LIT:2>, self.size-<NUM_LIT:2>, self.size-<NUM_LIT:2>,<EOL>style=tk.PIESLICE, start=-<NUM_LIT>, extent=<NUM_LIT:30>,<EOL>fill='<STR_LIT>')<EOL>self.canvas.create_arc(<NUM_LIT:2>, <NUM_LIT:2>, self.size-<NUM_LIT:2>, self.size-<NUM_LIT:2>,<EOL>style=tk.PIESLICE, start=-<NUM_LIT:30>, extent=<NUM_LIT>,<EOL>fill='<STR_LIT>')<EOL>self.canvas.create_arc(<NUM_LIT:2>, <NUM_LIT:2>, self.size-<NUM_LIT:2>, self.size-<NUM_LIT:2>,<EOL>style=tk.PIESLICE, start=<NUM_LIT:30>, extent=<NUM_LIT>,<EOL>fill='<STR_LIT>')<EOL>inner_tick_radius = int(self.size * <NUM_LIT>)<EOL>outer_tick_radius = int(self.size * <NUM_LIT:0.5>)<EOL>for tick in range(divisions):<EOL><INDENT>angle_in_radians = (<NUM_LIT> * cmath.pi / <NUM_LIT>)+ tick/divisions * (<NUM_LIT> * cmath.pi / <NUM_LIT>)<EOL>inner_point = cmath.rect(inner_tick_radius, angle_in_radians)<EOL>outer_point = cmath.rect(outer_tick_radius, angle_in_radians)<EOL>self.canvas.create_line(<EOL>*self.to_absolute(inner_point.real, inner_point.imag),<EOL>*self.to_absolute(outer_point.real, outer_point.imag),<EOL>width=<NUM_LIT:1><EOL>)<EOL><DEDENT>
Draws the background of the dial

:param divisions: the number of divisions
between 'ticks' shown on the dial
:return: None