diff -ur statsmodels-0.9.0/docs/source/conf.py statsmodels-0.9.0.x/docs/source/conf.py
--- statsmodels-0.9.0/docs/source/conf.py	2018-05-14 21:21:26.000000000 +0200
+++ statsmodels-0.9.0.x/docs/source/conf.py	2019-01-20 19:11:18.188622100 +0100
@@ -35,7 +35,6 @@
               'sphinx.ext.autosummary',
               'sphinx.ext.inheritance_diagram',
               'matplotlib.sphinxext.plot_directive',
-              'matplotlib.sphinxext.only_directives',
               'IPython.sphinxext.ipython_console_highlighting',
               'IPython.sphinxext.ipython_directive',
               'github',  # for GitHub links,
@@ -327,4 +326,4 @@
 import scipy.stats as stats
 import matplotlib.pyplot as plt
 import pandas as pd
-"""
\ No hay ningún carácter de nueva línea al final del fichero
+"""