Fixed app creation in qt5 backend (see #15100)

macdems · macdems · commit 759544a15a0a · 2019-08-25T20:29:27.000+02:00
diff --git a/lib/matplotlib/backends/backend_qt5.py b/lib/matplotlib/backends/backend_qt5.py
@@ -123,7 +123,7 @@ def _create_qApp():
                     QtCore.Qt.AA_EnableHighDpiScaling)
             except AttributeError:  # Attribute only exists for Qt>=5.6.
                 pass
-            qApp = QtWidgets.QApplication([b"matplotlib"])
+            qApp = QtWidgets.QApplication(["matplotlib"])
             qApp.lastWindowClosed.connect(qApp.quit)
         else:
             qApp = app
