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cairo backend: default to pycairo #13070

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Merged
merged 1 commit into from
Jan 6, 2019
Merged

cairo backend: default to pycairo #13070

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5 changes: 5 additions & 0 deletions doc/users/next_whats_new/2019-01-06-pycairo-default.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
The cairo backend now defaults to pycairo instead of cairocffi
``````````````````````````````````````````````````````````````

This leads to faster import/runtime performance in some cases. The backend
will fall back to cairocffi in case pycairo isn't available.
19 changes: 8 additions & 11 deletions lib/matplotlib/backends/backend_cairo.py
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Expand Up @@ -10,21 +10,18 @@

import numpy as np

# cairocffi is more widely compatible than pycairo so try it first.
try:
import cairocffi as cairo
import cairo
if cairo.version_info < (1, 11, 0):
# Introduced create_for_data for Py3.
raise ImportError
except ImportError:
try:
import cairo
import cairocffi as cairo
except ImportError:
raise ImportError("cairo backend requires that cairocffi or pycairo "
"is installed")
else:
if cairo.version_info < (1, 11, 0):
# Introduced create_for_data for Py3.
raise ImportError(
"cairo {} is installed; cairo>=1.11.0 is required"
.format(cairo.version))
raise ImportError(
"cairo backend requires that pycairo>=1.11.0 or cairocffi"
"is installed")

backend_version = cairo.version

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