如何在python中绘制一条线，每个数据点都有一个间隔

Using python: I have a sequence of data points with means and a list with the standard deviation for each mean. I would like to plot the means as points connected by a solid line and the standard deviation as an halo around the line using the same color, but changed opacity and the width of the halo as an indication of the size of std. There is one plot which looks exactly like this: the Using python: I have a sequence of data points