title: How can I plot a confidence interval in Python?
body: <p>I recently started to use Python, and I can't understand how to plot a confidence interval for a given datum (or set of data).</p>
  <p>I already have a function that computes, given a set of measurements, a higher and lower bound depending on the confidence level that I pass to it, but how can I use those two values to plot a confidence interval?</p>