python · serhiy-storchaka · Oct 10, 2025 · Oct 10, 2025
diff --git a/Lib/inspect.py b/Lib/inspect.py
@@ -1065,7 +1065,9 @@ def __init__(self):

    def tokeneater(self, type, token, srowcol, erowcol, line):
        if not self.started and not self.indecorator:
-            if type == tokenize.INDENT or token == "async":
+            if type in (tokenize.INDENT, tokenize.COMMENT, tokenize.NL):
+                pass
+            elif token == "async":
                pass
            # skip any decorators
            elif token == "@":

diff --git a/Lib/test/test_inspect/inspect_fodder2.py b/Lib/test/test_inspect/inspect_fodder2.py
@@ -388,4 +388,16 @@ def func383():
    )
    return ge385

+# line 391
+@decorator
+# comment
+def func394():
+    return 395
+
+# line 397
+@decorator
+
+def func400():
+    return 401
+
 pass # end of file
diff --git a/Lib/test/test_inspect/test_inspect.py b/Lib/test/test_inspect/test_inspect.py
@@ -1223,6 +1223,10 @@ def test_generator_expression(self):
        self.assertSourceEqual(next(mod2.ge377), 377, 380)
        self.assertSourceEqual(next(mod2.func383()), 385, 388)

+    def test_comment_or_empty_line_after_decorator(self):
+        self.assertSourceEqual(mod2.func394, 392, 395)
+        self.assertSourceEqual(mod2.func400, 398, 401)
+

 class TestNoEOL(GetSourceBase):
    def setUp(self):

diff --git a/Misc/NEWS.d/next/Library/2025-10-09-13-48-28.gh-issue-139783.__NUgo.rst b/Misc/NEWS.d/next/Library/2025-10-09-13-48-28.gh-issue-139783.__NUgo.rst
@@ -0,0 +1,2 @@
+Fix :func:`inspect.getsourcelines` for the case when a decorator is followed
+by a comment or an empty line.
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		Fix :func:`inspect.getsourcelines` for the case when a decorator is followed
		by a comment or an empty line.