commit e653369e76d7da6bcbcf1f09a141f47fb77df6c3
author Guido van Rossum <guido@python.org> Sat Jun 27 17:35:05 2020 -0700
committer GitHub <noreply@github.com> Sat Jun 27 17:35:05 2020 -0700
tree 4b49461500a8246c0d2d5e3a1a592ee72ad6ddbc
parent 749d3bc04177ff9e2ddfd58d919b84cb4f6cf894

[3.8] bpo-35975: Only use cf_feature_version if PyCF_ONLY_AST in cf_flags (#21023)

Python/pythonrun.c

diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index a7da143..6cdd8ea 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -1337,7 +1337,7 @@
     PyCompilerFlags localflags = _PyCompilerFlags_INIT;
     perrdetail err;
     int iflags = PARSER_FLAGS(flags);
-    if (flags && flags->cf_feature_version < 7)
+    if (flags && (flags->cf_flags & PyCF_ONLY_AST) && flags->cf_feature_version < 7)
         iflags |= PyPARSE_ASYNC_HACKS;
 
     node *n = PyParser_ParseStringObject(s, filename,