FIX: account for changes to private methods in mpl39

Also require at least mpl 3.9
matplotlib · Dec 29, 2024 · 75cdfaf · 75cdfaf
1 parent a72f357
commit 75cdfaf
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diff --git a/mpl_gui/_manage_backend.py b/mpl_gui/_manage_backend.py
@@ -5,6 +5,7 @@
 
 from matplotlib import cbook, rcsetup
 from matplotlib import rcParams, rcParamsDefault
+from matplotlib.backends.registry import backend_registry
 import matplotlib.backend_bases
 
 
@@ -92,7 +93,7 @@ def select_gui_toolkit(newbackend=None):
         if newbackend.lower() == "tkagg":
             backend_name = f"mpl_gui._patched_backends.{newbackend.lower()}"
         else:
-            backend_name = cbook._backend_module_name(newbackend)
+            backend_name = backend_registry._backend_module_name(newbackend)
 
         mod = importlib.import_module(backend_name)
         if hasattr(mod, "Backend"):

diff --git a/requirements.txt b/requirements.txt
@@ -1,2 +1,2 @@
 # List required packages in this file, one per line.
-matplotlib
+matplotlib>3.9