[2.7] bpo-34275: Make IDLE calltips always visible on Mac. (GH-8639) (GH-8644)
Some MacOS-tk combinations need .update_idletasks().
The call is both unneeded and innocuous on Linux and Windows.
Patch by Kevin Walzer.
(cherry picked from commit 9beaef6225cdae972b1cccd5310828cc29bf9d33)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
diff --git a/Lib/idlelib/CallTipWindow.py b/Lib/idlelib/CallTipWindow.py
index e63164b..2a453d0 100644
--- a/Lib/idlelib/CallTipWindow.py
+++ b/Lib/idlelib/CallTipWindow.py
@@ -72,6 +72,7 @@
background="#ffffe0", relief=SOLID, borderwidth=1,
font = self.widget['font'])
self.label.pack()
+ tw.update_idletasks()
tw.lift() # work around bug in Tk 8.5.18+ (issue #24570)
self.checkhideid = self.widget.bind(CHECKHIDE_VIRTUAL_EVENT_NAME,
diff --git a/Misc/NEWS.d/next/IDLE/2018-08-02-22-16-42.bpo-34275.Iu0d7t.rst b/Misc/NEWS.d/next/IDLE/2018-08-02-22-16-42.bpo-34275.Iu0d7t.rst
new file mode 100644
index 0000000..d7eba7a
--- /dev/null
+++ b/Misc/NEWS.d/next/IDLE/2018-08-02-22-16-42.bpo-34275.Iu0d7t.rst
@@ -0,0 +1,2 @@
+Make IDLE calltips always visible on Mac. Some MacOS-tk combinations need
+.update_idletasks(). Patch by Kevin Walzer.