I use Ipython Notebook on Mac OS 10.11.2. I run Python 3.5.1 and Matplotlib 1.5.1 and Seaborn version 0.6.0: %matplotlib inline import matplotlib.pyplot as plt import seaborn as sns I recently started having issues when plotting using Matplotlib/Seaborn. After generating a few plots within the same notebook, the notebook cell where my latest plot is being generated crashes with the error: OSError:

