dropbox chunked uploader fixed.
diff --git a/setup/doctype/backup_manager/backup_dropbox.py b/setup/doctype/backup_manager/backup_dropbox.py
index eb31a96..8cefebf 100644
--- a/setup/doctype/backup_manager/backup_dropbox.py
+++ b/setup/doctype/backup_manager/backup_dropbox.py
@@ -64,6 +64,7 @@
 	from dropbox import client, session, rest
 	from conf import dropbox_access_key, dropbox_secret_key
 	from webnotes.utils.backups import new_backup
+	found = False
 	if not webnotes.conn:
 		webnotes.connect()
 
@@ -81,15 +82,14 @@
 	upload_file_to_dropbox(filename, "database", dropbox_client)
 
 	response = dropbox_client.metadata("/files")
-
 	# upload files to files folder
-	filename = os.path.join(get_base_path(), "public", "files")
-	for filename in os.listdir(filename):
-		found = False
+	path = os.path.join(get_base_path(), "public", "files")
+	for files in os.listdir(path):
+		filename = path + "/" + files
 		for file_metadata in response["contents"]:
- 			if filename==os.path.basename(file_metadata["path"]):
-				if os.stat(filename).st_size==file_metadata["bytes"]:
-					found=True
+ 			if os.path.basename(filename)==os.path.basename(file_metadata["path"]) and os.stat(filename).st_size==int(file_metadata["bytes"]):
+				found=True
+				break
 		
 		if not found:
 			upload_file_to_dropbox(os.path.join(get_base_path(),"public", "files", filename), "files", dropbox_client)