Generating Histograms from CSVs in Python

The other day I was looking at a bunch of data I had generated to csv files and I needed a way to programmatically create some histograms, preferably in python. I googled, and surprisingly, nothing came up. So, here's my example code using matplotlib.

If you're looping through the data and generating a bunch of different histograms (like I was), just be sure the clear the plot with plt.clr().