FIX: don't import macosx to check if eventloop running

jklymak · jklymak · commit f14f24191cb5 · 2018-10-23T11:58:54.000-07:00
diff --git a/lib/matplotlib/backends/__init__.py b/lib/matplotlib/backends/__init__.py
@@ -47,12 +47,7 @@ def _get_running_interactive_framework():
                 if frame.f_code == tkinter.mainloop.__code__:
                     return "tk"
                 frame = frame.f_back
-    try:
-        from matplotlib.backends import _macosx
-    except ImportError:
-        pass
-    else:
-        if _macosx.event_loop_is_running():
+    if ('_macosx' in sys.modules) and (_macosx.event_loop_is_running()):
             return "macosx"
     if sys.platform.startswith("linux") and not os.environ.get("DISPLAY"):
         return "headless"
