diff --git a/lib/matplotlib/backend_bases.py b/lib/matplotlib/backend_bases.py
index 37d7d276ea93..5bdcb6c6a64f 100644
--- a/lib/matplotlib/backend_bases.py
+++ b/lib/matplotlib/backend_bases.py
@@ -2233,7 +2233,7 @@ def get_window_title(self):
Return the title text of the window containing the figure, or None
if there is no window (e.g., a PS backend).
"""
- if self.manager:
+ if self.manager is not None:
return self.manager.get_window_title()
def set_window_title(self, title):
@@ -2241,7 +2241,7 @@ def set_window_title(self, title):
Set the title text of the window containing the figure. Note that
this has no effect if there is no window (e.g., a PS backend).
"""
- if hasattr(self, "manager"):
+ if self.manager is not None:
self.manager.set_window_title(title)
def get_default_filename(self):
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