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class MatplotlibBackendSetter(object):
"""
Import hook to make sure the proper Qt backend is set when importing
Matplotlib.
"""
enabled = True
def find_module(self, mod_name, pth=None):
if self.enabled and 'matplotlib' in mod_name:
self.enabled = False
set_mpl_backend()
def find_spec(self, name, import_path, target_module=None):
pass
def set_mpl_backend():
try:
from qtpy import PYQT5
except:
# If Qt isn't available, we don't have to worry about
# setting the backend
return
from matplotlib import rcParams, rcdefaults
# standardize mpl setup
rcdefaults()
if PYQT5:
rcParams['backend'] = 'Qt5Agg'
else:
rcParams['backend'] = 'Qt4Agg'
# The following is a workaround for the fact that Matplotlib checks the
# rcParams at import time, not at run-time. I have opened an issue with
# Matplotlib here: https://github.com/matplotlib/matplotlib/issues/5513
from matplotlib import get_backend
from matplotlib import backends
backends.backend = get_backend()
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