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-rw-r--r--Lib/idlelib/macosxSupport.py8
1 files changed, 7 insertions, 1 deletions
diff --git a/Lib/idlelib/macosxSupport.py b/Lib/idlelib/macosxSupport.py
index d2705300d7..346f04d1a3 100644
--- a/Lib/idlelib/macosxSupport.py
+++ b/Lib/idlelib/macosxSupport.py
@@ -5,13 +5,19 @@ GUI application (as opposed to an X11 application).
import sys
import tkinter
+
+_appbundle = None
+
def runningAsOSXApp():
"""
Returns True if Python is running from within an app on OSX.
If so, assume that Python was built with Aqua Tcl/Tk rather than
X11 Tcl/Tk.
"""
- return (sys.platform == 'darwin' and '.app' in sys.executable)
+ global _appbundle
+ if _appbundle is None:
+ _appbundle = (sys.platform == 'darwin' and '.app' in sys.executable)
+ return _appbundle
def addOpenEventSupport(root, flist):
"""