try:
    from .qt import QtGui as _QtGui
except ImportError as e:
    raise ImportError('Viewer requires Qt')

from .viewers import ImageViewer, CollectionViewer

@@ -1,8 +1,24 @@
+import warnings%0A
 try:%0A   
@@ -28,18 +28,23 @@
 om .
-qt
+viewers
  import 
 QtGu
@@ -43,23 +43,37 @@
 ort 
-QtGui as _QtGui
+ImageViewer, CollectionViewer
 %0Aexc
@@ -102,25 +102,21 @@
     
-raise ImportError
+warnings.warn
 ('Vi
@@ -138,56 +138,4 @@
 t')%0A
-%0Afrom .viewers import ImageViewer, CollectionViewer%0A

Allow viewer package to import without Qt