Update app.py

app.py

@@ -1,8 +1,6 @@
 import os
 os.system('pip install detectron2 -f https://dl.fbaipublicfiles.com/detectron2/wheels/cu102/torch1.9/index.html')
 
-credentials_kwargs={"aws_access_key_id": os.environ["ACCESS_KEY"],"aws_secret_access_key": os.environ["SECRET_KEY"]}
-
 # work around: https://discuss.huggingface.co/t/how-to-install-a-specific-version-of-gradio-in-spaces/13552
 os.system("pip uninstall -y gradio")
 os.system("pip install gradio==3.4.1")
@@ -97,6 +95,9 @@ d_item = dd.D2FrcnnDetector(item_config_path, item_weights_path, categories_item
 pdf_text = PdfTextDetector(_XSL_PATH)
 
 # text detector
+credentials_kwargs={"aws_access_key_id": os.environ["ACCESS_KEY"],
+                    "aws_secret_access_key": os.environ["SECRET_KEY"],
+                    "region": os.environ["REGION"]}
 tex_text = dd.TextractOcrDetector(**credentials_kwargs)