From 7ce5efaf2e99c7cec602260142f9b3ea07fd3d9b Mon Sep 17 00:00:00 2001
From: Fabio Manganiello <blacklight86@gmail.com>
Date: Tue, 24 Mar 2020 10:25:25 +0100
Subject: [PATCH] Removed numpy and PIL top-level imports that could break the
 HTTP server if not installed on the system

---
 platypush/plugins/qrcode.py | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/platypush/plugins/qrcode.py b/platypush/plugins/qrcode.py
index d1c0e083..e16c49a8 100644
--- a/platypush/plugins/qrcode.py
+++ b/platypush/plugins/qrcode.py
@@ -5,9 +5,6 @@ import threading
 import time
 from typing import Optional, List
 
-import numpy as np
-from PIL import Image
-
 from platypush import Config
 from platypush.context import get_bus
 from platypush.message.event.qrcode import QrcodeScannedEvent
@@ -105,7 +102,8 @@ class QrcodePlugin(Plugin):
         results = pyzbar.decode(img)
         return QrcodeDecodedResponse(results)
 
-    def _convert_frame(self, frame) -> Image:
+    def _convert_frame(self, frame):
+        import numpy as np
         assert isinstance(frame, np.ndarray), \
                 'Image conversion only works with numpy arrays for now (got {})'.format(type(frame))
         mode = 'RGB'