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/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;