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gh-120220: Deprecate legacy methods for tracing variables in Tkinter (GH-120223)

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They do not work with Tcl 9.0.
Use new methods added in Python 3.6.
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Serhiy Storchaka 2025-04-29 20:26:51 +03:00 • committed by GitHub
parent 814ca116d5
commit c46635aa5a
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4 changed files with 58 additions and 21 deletions
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39
Lib/test/test_tkinter/test_variables.py
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@ -122,9 +122,14 @@ def read_tracer(*args):
trace.append(('read',) + args)
def write_tracer(*args):
trace.append(('write',) + args)
cb1 = v.trace_variable('r', read_tracer)
cb2 = v.trace_variable('wu', write_tracer)
self.assertEqual(sorted(v.trace_vinfo()), [('r', cb1), ('wu', cb2)])
with self.assertWarns(DeprecationWarning) as cm:
cb1 = v.trace_variable('r', read_tracer)
self.assertEqual(cm.filename, __file__)
with self.assertWarns(DeprecationWarning):
cb2 = v.trace_variable('wu', write_tracer)
with self.assertWarns(DeprecationWarning) as cm:
self.assertEqual(sorted(v.trace_vinfo()), [('r', cb1), ('wu', cb2)])
self.assertEqual(cm.filename, __file__)
self.assertEqual(trace, [])
v.set('spam')
@ -135,20 +140,30 @@ def write_tracer(*args):
self.assertEqual(trace, [('read', vname, '', 'r')])
trace = []
info = sorted(v.trace_vinfo())
v.trace_vdelete('w', cb1) # Wrong mode
self.assertEqual(sorted(v.trace_vinfo()), info)
with self.assertWarns(DeprecationWarning):
info = sorted(v.trace_vinfo())
with self.assertWarns(DeprecationWarning):
v.trace_vdelete('w', cb1) # Wrong mode
with self.assertWarns(DeprecationWarning):
self.assertEqual(sorted(v.trace_vinfo()), info)
with self.assertRaises(TclError):
v.trace_vdelete('r', 'spam') # Wrong command name
self.assertEqual(sorted(v.trace_vinfo()), info)
v.trace_vdelete('r', (cb1, 43)) # Wrong arguments
self.assertEqual(sorted(v.trace_vinfo()), info)
with self.assertWarns(DeprecationWarning):
v.trace_vdelete('r', 'spam') # Wrong command name
with self.assertWarns(DeprecationWarning):
self.assertEqual(sorted(v.trace_vinfo()), info)
with self.assertWarns(DeprecationWarning):
v.trace_vdelete('r', (cb1, 43)) # Wrong arguments
with self.assertWarns(DeprecationWarning):
self.assertEqual(sorted(v.trace_vinfo()), info)
v.get()
self.assertEqual(trace, [('read', vname, '', 'r')])
trace = []
v.trace_vdelete('r', cb1)
self.assertEqual(v.trace_vinfo(), [('wu', cb2)])
with self.assertWarns(DeprecationWarning) as cm:
v.trace_vdelete('r', cb1)
self.assertEqual(cm.filename, __file__)
with self.assertWarns(DeprecationWarning):
self.assertEqual(v.trace_vinfo(), [('wu', cb2)])
v.get()
self.assertEqual(trace, [])