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sphinxext pot_directive: more robust backend switching #5039

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merged 1 commit into from Oct 8, 2015
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sphinxext pot_directive: more robust backend switching #5039

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12 changes: 10 additions & 2 deletions lib/matplotlib/sphinxext/plot_directive.py
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Expand Up @@ -139,6 +139,7 @@
import sys, os, shutil, io, re, textwrap
from os.path import relpath
import traceback
import warnings

if not six.PY3:
import cStringIO
Expand Down Expand Up @@ -166,8 +167,15 @@ def format_template(template, **kw):

import matplotlib
import matplotlib.cbook as cbook
matplotlib.use('Agg')
import matplotlib.pyplot as plt
try:
with warnings.catch_warnings(record=True):
warnings.simplefilter("error", UserWarning)
matplotlib.use('Agg')
except UserWarning:
import matplotlib.pyplot as plt
plt.switch_backend("Agg")
else:
import matplotlib.pyplot as plt
from matplotlib import _pylab_helpers

__version__ = 2
Expand Down