From 06521cf9e8fa33416f5a3f1b9fc1075dbaeba712 Mon Sep 17 00:00:00 2001
From: Glenn Jocher <glenn.jocher@ultralytics.com>
Date: Wed, 1 Sep 2021 16:30:14 +0200
Subject: [PATCH] Fix `is_coco` on missing `data['val']` key (#4642)

---
 val.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/val.py b/val.py
index cbee8cf1c026..1aa37d12dfac 100644
--- a/val.py
+++ b/val.py
@@ -134,7 +134,7 @@ def run(data,
 
     # Configure
     model.eval()
-    is_coco = type(data['val']) is str and data['val'].endswith('coco/val2017.txt')  # COCO dataset
+    is_coco = isinstance(data.get('val'), str) and data['val'].endswith('coco/val2017.txt')  # COCO dataset
     nc = 1 if single_cls else int(data['nc'])  # number of classes
     iouv = torch.linspace(0.5, 0.95, 10).to(device)  # iou vector for mAP@0.5:0.95
     niou = iouv.numel()