Issue #27594: Prevent assertion error when running test_ast with coverage
enabled: ensure code object has a valid first line number.
Patch suggested by Ivan Levkivskyi.
diff --git a/Misc/NEWS b/Misc/NEWS
index c06539b..efa0f76 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -167,6 +167,10 @@
- Issue #27369: In test_pyexpat, avoid testing an error message detail that
changed in Expat 2.2.0.
+- Issue #27594: Prevent assertion error when running test_ast with coverage
+ enabled: ensure code object has a valid first line number.
+ Patch suggested by Ivan Levkivskyi.
+
Windows
-------
diff --git a/Python/compile.c b/Python/compile.c
index e46676c..fb80f51 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -4963,7 +4963,7 @@
/* Set firstlineno if it wasn't explicitly set. */
if (!c->u->u_firstlineno) {
- if (entryblock && entryblock->b_instr)
+ if (entryblock && entryblock->b_instr && entryblock->b_instr->i_lineno)
c->u->u_firstlineno = entryblock->b_instr->i_lineno;
else
c->u->u_firstlineno = 1;