[Python-checkins] bpo-44404: tkinter `after` support callable classes (GH-26812)
serhiy-storchaka
webhook-mailer at python.org
Wed Jun 23 06:30:28 EDT 2021
https://github.com/python/cpython/commit/e9c8f784fa13ea3a51df3b72a498a3896ec9e768
commit: e9c8f784fa13ea3a51df3b72a498a3896ec9e768
branch: main
author: E-Paine <63801254+E-Paine at users.noreply.github.com>
committer: serhiy-storchaka <storchaka at gmail.com>
date: 2021-06-23T13:30:24+03:00
summary:
bpo-44404: tkinter `after` support callable classes (GH-26812)
files:
A Misc/NEWS.d/next/Library/2021-06-20-19-01-11.bpo-44404.McfrYB.rst
M Lib/tkinter/__init__.py
M Lib/tkinter/test/test_tkinter/test_misc.py
diff --git a/Lib/tkinter/__init__.py b/Lib/tkinter/__init__.py
index 369004c9d1b3d4..2513c972bc77f0 100644
--- a/Lib/tkinter/__init__.py
+++ b/Lib/tkinter/__init__.py
@@ -841,7 +841,11 @@ def callit():
self.deletecommand(name)
except TclError:
pass
- callit.__name__ = func.__name__
+ try:
+ callit.__name__ = func.__name__
+ except AttributeError:
+ # Required for callable classes (bpo-44404)
+ callit.__name__ = type(func).__name__
name = self._register(callit)
return self.tk.call('after', ms, name)
diff --git a/Lib/tkinter/test/test_tkinter/test_misc.py b/Lib/tkinter/test/test_tkinter/test_misc.py
index d4b7cbd867bc04..ab8f64790dfc0e 100644
--- a/Lib/tkinter/test/test_tkinter/test_misc.py
+++ b/Lib/tkinter/test/test_tkinter/test_misc.py
@@ -1,3 +1,4 @@
+import functools
import unittest
import tkinter
import enum
@@ -98,6 +99,12 @@ def callback(start=0, step=1):
with self.assertRaises(tkinter.TclError):
root.tk.call(script)
+ # Call with a callable class
+ count = 0
+ timer1 = root.after(0, functools.partial(callback, 42, 11))
+ root.update() # Process all pending events.
+ self.assertEqual(count, 53)
+
def test_after_idle(self):
root = self.root
diff --git a/Misc/NEWS.d/next/Library/2021-06-20-19-01-11.bpo-44404.McfrYB.rst b/Misc/NEWS.d/next/Library/2021-06-20-19-01-11.bpo-44404.McfrYB.rst
new file mode 100644
index 00000000000000..ff6ca1bfa7242d
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2021-06-20-19-01-11.bpo-44404.McfrYB.rst
@@ -0,0 +1 @@
+:mod:`tkinter`'s ``after()`` method now supports callables without the ``__name__`` attribute.
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