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Commitb7423af

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QuLogicmeeseeksmachine
authored andcommitted
Backport PR#28473: Do not lowercase module:// backends
1 parent452626f commitb7423af

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3 files changed

+29
-3
lines changed

3 files changed

+29
-3
lines changed

‎lib/matplotlib/backends/registry.py

Lines changed: 9 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -93,6 +93,9 @@ def __init__(self):
9393
}
9494

9595
def_backend_module_name(self,backend):
96+
ifbackend.startswith("module://"):
97+
returnbackend[9:]
98+
9699
# Return name of module containing the specified backend.
97100
# Does not check if the backend is valid, use is_valid_backend for that.
98101
backend=backend.lower()
@@ -224,7 +227,8 @@ def is_valid_backend(self, backend):
224227
bool
225228
True if backend is valid, False otherwise.
226229
"""
227-
backend=backend.lower()
230+
ifnotbackend.startswith("module://"):
231+
backend=backend.lower()
228232

229233
# For backward compatibility, convert ipympl and matplotlib-inline long
230234
# module:// names to their shortened forms.
@@ -342,7 +346,8 @@ def resolve_backend(self, backend):
342346
The GUI framework, which will be None for a backend that is non-interactive.
343347
"""
344348
ifisinstance(backend,str):
345-
backend=backend.lower()
349+
ifnotbackend.startswith("module://"):
350+
backend=backend.lower()
346351
else:# Might be _auto_backend_sentinel or None
347352
# Use whatever is already running...
348353
frommatplotlibimportget_backend
@@ -395,7 +400,8 @@ def resolve_gui_or_backend(self, gui_or_backend):
395400
framework : str or None
396401
The GUI framework, which will be None for a backend that is non-interactive.
397402
"""
398-
gui_or_backend=gui_or_backend.lower()
403+
ifnotgui_or_backend.startswith("module://"):
404+
gui_or_backend=gui_or_backend.lower()
399405

400406
# First check if it is a gui loop name.
401407
backend=self.backend_for_gui_framework(gui_or_backend)

‎lib/matplotlib/tests/test_backend_registry.py

Lines changed: 9 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -86,6 +86,15 @@ def test_is_valid_backend(backend, is_valid):
8686
assertbackend_registry.is_valid_backend(backend)==is_valid
8787

8888

89+
@pytest.mark.parametrize("backend, normalized", [
90+
("agg","matplotlib.backends.backend_agg"),
91+
("QtAgg","matplotlib.backends.backend_qtagg"),
92+
("module://Anything","Anything"),
93+
])
94+
deftest_backend_normalization(backend,normalized):
95+
assertbackend_registry._backend_module_name(backend)==normalized
96+
97+
8998
deftest_deprecated_rcsetup_attributes():
9099
match="was deprecated in Matplotlib 3.9"
91100
withpytest.warns(mpl.MatplotlibDeprecationWarning,match=match):

‎lib/matplotlib/tests/test_backend_template.py

Lines changed: 11 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -49,3 +49,14 @@ def test_show_old_global_api(monkeypatch):
4949
mpl.use("module://mpl_test_backend")
5050
plt.show()
5151
mock_show.assert_called_with()
52+
53+
54+
deftest_load_case_sensitive(monkeypatch):
55+
mpl_test_backend=SimpleNamespace(**vars(backend_template))
56+
mock_show=MagicMock()
57+
monkeypatch.setattr(
58+
mpl_test_backend.FigureManagerTemplate,"pyplot_show",mock_show)
59+
monkeypatch.setitem(sys.modules,"mpl_Test_Backend",mpl_test_backend)
60+
mpl.use("module://mpl_Test_Backend")
61+
plt.show()
62+
mock_show.assert_called_with()

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