diff --git a/minor_patch_diff.py b/minor_patch_diff.py
index 8fd874b..9c7d22c 100644
--- a/minor_patch_diff.py
+++ b/minor_patch_diff.py
@@ -216,9 +216,7 @@ def minor_patch_diff(old_exe, new_exe):
     opcodes_found = find_opcode_matches(old_opcodes_db, new_opcodes_db)
     opcodes_object = []
 
-    for k, v in enumerate(opcodes_found):
-        old, new = v
-
+    for (old, new) in opcodes_found:
         opcodes_object.append(
             {
                 "old": [hex(o) for o in old],
diff --git a/utils.py b/utils.py
index 3f21cab..564b3cb 100644
--- a/utils.py
+++ b/utils.py
@@ -26,10 +26,15 @@ def sync_r2_output(r2):
 
     Read stuff from the process pipe until it stops being stupid.
     """
+
+    def set_blocking(fileno, blocking):
+        if hasattr(os, "set_blocking"):
+            os.set_blocking(fileno, blocking)
+
     time.sleep(1)
-    os.set_blocking(r2.process.stdout.fileno(), False)
+    set_blocking(r2.process.stdout.fileno(), False)
     p = r2.process.stdout.read(1)
-    os.set_blocking(r2.process.stdout.fileno(), True)
+    set_blocking(r2.process.stdout.fileno(), True)
     output = r2.cmd(f"?vi 123").strip()
     if output != "123":
         raise Exception("R2 state never got synced")