1 files changed, 19 insertions, 0 deletions
diff --git a/setuptools/_distutils/py35compat.py b/setuptools/_distutils/py35compat.py
new file mode 100644
index 00000000..79b2e7f3
--- /dev/null
+++ b/setuptools/_distutils/py35compat.py
@@ -0,0 +1,19 @@
+import sys
+import subprocess
+
+
+def __optim_args_from_interpreter_flags():
+    """Return a list of command-line arguments reproducing the current
+    optimization settings in sys.flags."""
+    args = []
+    value = sys.flags.optimize
+    if value > 0:
+        args.append("-" + "O" * value)
+    return args
+
+
+_optim_args_from_interpreter_flags = getattr(
+    subprocess,
+    "_optim_args_from_interpreter_flags",
+    __optim_args_from_interpreter_flags,
+)