Create ImageFolder with the same (sorted) order on different machines (#193)

Author: JirenJin

torchvision/datasets/folder.py

@@ -24,7 +24,7 @@ def find_classes(dir):
 def make_dataset(dir, class_to_idx):
     images = []
     dir = os.path.expanduser(dir)
-    for target in os.listdir(dir):
+    for target in sorted(os.listdir(dir)):
         d = os.path.join(dir, target)
         if not os.path.isdir(d):
             continue