emcli: Allow roi 404

scripts/emcli

@@ -89,8 +89,10 @@ class GetScanDataCommand(SubCommand):
                 f.write(sd['message'] + "\n")
             with open(f"{args.output}/{i}-frame.jpg", "wb") as f:
                 f.write(self.get_image(sd['image']))
-            with open(f"{args.output}/{i}-roi.jpg", "wb") as f:
-                f.write(self.get_roi(sd['code']))
+            roi = self.get_roi(sd['code'])
+            if roi:
+                with open(f"{args.output}/{i}-roi.jpg", "wb") as f:
+                    f.write(roi)
 
     def get_scan_data(self, i):
         server = self.get_server()
@@ -112,7 +114,8 @@ class GetScanDataCommand(SubCommand):
         token = self.get_env()['token']
         url = f'{server}/api/v1/code-feature-roi/?token={token}&code={code}'
         r = requests.get(url)
-        r.raise_for_status()
+        if r.status_code == 404:
+            return None
         return r.content
 
 class UploadRoiCommand(SubCommand):