slider_min = 0.0 slider_max = 1.0 lats_lons = getLatsAndLongsByTimePercentage(t0) lats = lats_lons[0] lons = lats_lons[1] x,y = map(lons, lats) map.plot(x, y, 'ro',fillstyle='none', markersize=8) #---Slider Code--- subplots_adjust(left=0.25, bottom=0.25) slider_color = 'lightgoldenrodyellow' slider_dimens = axes([0.25, 0.15, 0.65, 0.03], axisbg=slider_color) slider_time = Slider(slider_dimens, 'Time', slider_min, slider_max, valinit=t0) slider_time.label='slider label' def update(val): subplot(111) plt.cla() time_percentage = val lats_lons = getLatsAndLongsByTimePercentage(time_percentage) lats = lats_lons[0] lons = lats_lons[1] start_date = lats_lons[2] stop_date = lats_lons[3] axis1.text(0.95, 0.01, start_date+' '+stop_date, verticalalignment='bottom', horizontalalignment='right', transform=axis1.transAxes, color='cyan', fontsize=15) x,y = map(lons, lats) map.plot(x, y, 'ro',fillstyle='none', markersize=8)