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Backport PR #12022 on branch v3.0.x (Remove intent to deprecate rcParams["backend_fallback"].) #12029

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Merged
merged 1 commit into from
Sep 7, 2018
Merged

Backport PR #12022 on branch v3.0.x (Remove intent to deprecate rcParams["backend_fallback"].) #12029

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35 changes: 11 additions & 24 deletions lib/matplotlib/pyplot.py
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Original file line number Diff line number Diff line change
Expand Up @@ -72,26 +72,6 @@
_log = logging.getLogger(__name__)


## Backend detection ##


# FIXME: Deprecate.
def _backend_selection():
"""
If rcParams['backend_fallback'] is true, we will check (at backend
load-time) to see if the current backend is compatible with the current
running event loop, and if not switches to a compatible one.
"""
if rcParams["backend_fallback"]:
if (dict.__getitem__(rcParams, "backend") in _interactive_bk
and _get_running_interactive_framework()):
dict.__setitem__(
rcParams, "backend", rcsetup._auto_backend_sentinel)


_backend_selection()


## Global ##


Expand Down Expand Up @@ -2380,16 +2360,23 @@ def _autogen_docstring(base):
return lambda func: addendum(docstring.copy_dedent(base)(func))


# just to be safe. Interactive mode can be turned on without
# If rcParams['backend_fallback'] is true, and an interactive backend is
# requested, ignore rcParams['backend'] and force selection of a backend that
# is compatible with the current running interactive framework.
if (rcParams["backend_fallback"]
and dict.__getitem__(rcParams, "backend") in _interactive_bk
and _get_running_interactive_framework()):
dict.__setitem__(rcParams, "backend", rcsetup._auto_backend_sentinel)
# Set up the backend.
switch_backend(rcParams["backend"])

# Just to be safe. Interactive mode can be turned on without
# calling `plt.ion()` so register it again here.
# This is safe because multiple calls to `install_repl_displayhook`
# are no-ops and the registered function respect `mpl.is_interactive()`
# to determine if they should trigger a draw.
install_repl_displayhook()

# Set up the backend.
switch_backend(rcParams["backend"])


################# REMAINING CONTENT GENERATED BY boilerplate.py ##############

Expand Down