Seaborn matplotlib: Cannot get window extent w/o renderer (RuntimeError)

Question

I\'m trying to plot a seaborn clustermap (it doesn\'t work with the heatmap too) with the following, no NaNs admitted:

import nump         


        

Answer 1

I'm using Mac OS X 10.9.5, python 2.7.9, matplotlib 1.4.3, and seaborn 0.5.1. I was able to reproduce the error.

By default I am using the macosx backend for matplotlib. Your code works if I change the backend to qt4agg (requires PyQt4), tkagg or webagg. Here's the script that worked for me:

import numpy as np
import pandas as pd

import matplotlib
matplotlib.use('qt4agg')  # Can also use 'tkagg' or 'webagg'

import matplotlib.pyplot as plt
import seaborn as sns


def plotClusterMap():
    a = pd.DataFrame(np.matrix('1 2; 3 4'))
    print a
    # fig = plt.figure()
    sns.clustermap(a)
    plt.show()


if __name__ == "__main__":
    plotClusterMap()

Note that I commented out fig = plt.figure(). clustermap appears to create its own figure.