!15 bugfix:Fix assigning string value to Set

From: @dongjiao-joan 
Reviewed-by: @yangzhao_kl 
Signed-off-by: @yangzhao_kl

backport-fix-assigning-string-value-to-Set.patch

@@ -0,0 +1,60 @@
+From 5cf34f6c42b6e39aa1e53394443efca3d7329e3b Mon Sep 17 00:00:00 2001
+From: azjps <azhu@tower-research.com>
+Date: Fri, 19 Apr 2024 23:07:41 +1200
+Subject: [PATCH] Fix assigning string value to Set (#903)
+url:https://github.com/ipython/traitlets/pull/903/commits/4143e7eb0c3e474fe3cb031666b4620cf1e0d832
+---
+ tests/test_traitlets.py | 18 ++++++++++++++++++
+ traitlets/traitlets.py  |  7 +------
+ 2 files changed, 19 insertions(+), 6 deletions(-)
+
+diff --git a/tests/test_traitlets.py b/tests/test_traitlets.py
+index dfcf3f0..f9f623b 100644
+--- a/tests/test_traitlets.py
++++ b/tests/test_traitlets.py
+@@ -1658,6 +1658,24 @@ class TestList(TraitTestBase):
+         return value
+ 
+ 
++class SetTrait(HasTraits):
++    value = Set(Unicode())
++
++
++class TestSet(TraitTestBase):
++    obj = SetTrait()
++
++    _default_value: t.Set[str] = set()
++    _good_values = [{"a", "b"}, "ab"]
++    _bad_values = [1]
++
++    def coerce(self, value):
++        if isinstance(value, str):
++            # compatibility handling: convert string to set containing string
++            value = {value}
++        return value
++
++
+ class Foo:
+     pass
+ 
+diff --git a/traitlets/traitlets.py b/traitlets/traitlets.py
+index 1d1675a..ecd0d7c 100644
+--- a/traitlets/traitlets.py
++++ b/traitlets/traitlets.py
+@@ -3698,12 +3698,7 @@ class Set(Container[t.Set[t.Any]]):
+ 
+     def set(self, obj: t.Any, value: t.Any) -> None:
+         if isinstance(value, str):
+-            return super().set(
+-                obj,
+-                set(
+-                    value,
+-                ),
+-            )
++            return super().set(obj, {value})
+         else:
+             return super().set(obj, value)
+ 
+-- 
+2.27.0
+

python-traitlets.spec

@@ -1,11 +1,12 @@
 Name:           python-traitlets
 Version:        5.14.1
-Release:        1
+Release:        2
 Summary:        A lightweight Traits like module.
 
 License:        BSD-3-Clause
 URL:            https://github.com/ipython/traitlets
 Source0:        https://files.pythonhosted.org/packages/source/t/traitlets/traitlets-%{version}.tar.gz
+Patch0:         backport-fix-assigning-string-value-to-Set.patch
 BuildArch:      noarch
 
 %description
@@ -46,6 +47,9 @@ py.test-3 -v traitlets/tests/
 %{python3_sitelib}/traitlets*.dist-info/
 
 %changelog
+* Sat May 11 2024 dongjiao <dongjiao@kylinos.cn> - 5.14.1-2
+- bugfix:Fix assigning string value to Set
+
 * Fri Mar 1 2024 Dongxing Wang <dongxing.wang_a@thundersoft.com> - 5.14.1-1
 - Upgrade package with version 5.14.1
   Add option to load traitlets values from environement.