fix: another possible assert changed back to a conditional.

CHANGES.rst

@@ -23,7 +23,8 @@ upgrading your version of coverage.py.
 Unreleased
 ----------
 
-Nothing yet.
+- fix: ugh, the other assert from 7.6.5 can also be encountered in the wild,
+  so it's been restored to a conditional.  Sorry for the churn.
 
 
 .. start-releases

coverage/parser.py

@@ -444,8 +444,8 @@ def _line_numbers(self) -> Iterable[TLineNo]:
                 if line_incr >= 0x80:
                     line_incr -= 0x100
                 line_num += line_incr
-            assert line_num != last_line_num, f"Oops: {self.code.co_name}@{line_num}"
-            yield line_num
+            if line_num != last_line_num:
+                yield line_num
 
     def _find_statements(self) -> Iterable[TLineNo]:
         """Find the statements in `self.code`.

tests/test_parser.py

@@ -198,14 +198,22 @@ def test_fuzzed_double_parse(self) -> None:
             self.parse_text("]")
 
     def test_bug_1891(self) -> None:
-        # This code exercises a code path I thought was impossible.
+        # These examples exercise code paths I thought were impossible.
         parser = self.parse_text("""\
             res = siblings(
                 'configure',
                 **ca,
             )
             """)
-        assert parser.exit_counts() == { 1:1 }
+        assert parser.exit_counts() == {1: 1}
+        parser = self.parse_text("""\
+            def g2():
+                try:
+                    return 2
+                finally:
+                    return 3
+            """)
+        assert parser.exit_counts() == {1: 1, 2: 1, 3: 1, 5: 1}
 
 
 class ExclusionParserTest(PythonParserTestBase):