[Python-checkins] GH-99944: Make dis display the value of oparg of KW_NAMES (#103856)

[iritkatriel]

https://github.com/python/cpython/commit/d45225bd66a8123e4a30314c627f2586293ba532
commit: d45225bd66a8123e4a30314c627f2586293ba532
branch: main
author: Juhi Chandalia <jkchandalia at gmail.com>
committer: iritkatriel <1055913+iritkatriel at users.noreply.github.com>
date: 2023-04-26T19:00:36+01:00
summary:

GH-99944: Make dis display the value of oparg of KW_NAMES (#103856)

Co-authored-by: chilaxan <chilaxan at gmail.com>

files:
A Misc/NEWS.d/next/Library/2023-04-25-22-59-06.gh-issue-99944.pst8iT.rst
M Lib/dis.py
M Lib/test/test_dis.py

diff --git a/Lib/dis.py b/Lib/dis.py
index 8af84c00d0cf..85c109584bf9 100644
--- a/Lib/dis.py
+++ b/Lib/dis.py
@@ -369,9 +369,8 @@ def _get_const_value(op, arg, co_consts):
     assert op in hasconst
 
     argval = UNKNOWN
-    if op == LOAD_CONST or op == RETURN_CONST:
-        if co_consts is not None:
-            argval = co_consts[arg]
+    if co_consts is not None:
+        argval = co_consts[arg]
     return argval
 
 def _get_const_info(op, arg, co_consts):
diff --git a/Lib/test/test_dis.py b/Lib/test/test_dis.py
index 97960726991b..bdb541eb3b56 100644
--- a/Lib/test/test_dis.py
+++ b/Lib/test/test_dis.py
@@ -227,6 +227,26 @@ def bug42562():
        JUMP_FORWARD            -4 (to 0)
 """
 
+def func_w_kwargs(a, b, **c):
+    pass
+
+def wrap_func_w_kwargs():
+    func_w_kwargs(1, 2, c=5)
+
+dis_kw_names = """\
+%3d        RESUME                   0
+
+%3d        LOAD_GLOBAL              1 (NULL + func_w_kwargs)
+           LOAD_CONST               1 (1)
+           LOAD_CONST               2 (2)
+           LOAD_CONST               3 (5)
+           KW_NAMES                 4 (('c',))
+           CALL                     3
+           POP_TOP
+           RETURN_CONST             0 (None)
+""" % (wrap_func_w_kwargs.__code__.co_firstlineno,
+       wrap_func_w_kwargs.__code__.co_firstlineno + 1)
+
 _BIG_LINENO_FORMAT = """\
   1        RESUME                   0
 
@@ -911,6 +931,10 @@ def test_bug_46724(self):
         # Test that negative operargs are handled properly
         self.do_disassembly_test(bug46724, dis_bug46724)
 
+    def test_kw_names(self):
+        # Test that value is displayed for KW_NAMES
+        self.do_disassembly_test(wrap_func_w_kwargs, dis_kw_names)
+
     def test_big_linenos(self):
         def func(count):
             namespace = {}
diff --git a/Misc/NEWS.d/next/Library/2023-04-25-22-59-06.gh-issue-99944.pst8iT.rst b/Misc/NEWS.d/next/Library/2023-04-25-22-59-06.gh-issue-99944.pst8iT.rst
new file mode 100644
index 000000000000..80238a65e32a
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2023-04-25-22-59-06.gh-issue-99944.pst8iT.rst
@@ -0,0 +1 @@
+Make :mod:`dis` display the value of oparg of :opcode:`KW_NAMES`.