fix repr() and str() on File-based objects

weboob/capabilities/file.py

@@ -38,6 +38,12 @@ class BaseFile(CapBaseObject):
     rating =        Field('Rating', int, long, float, default=NotAvailable)
     rating_max =    Field('Maximum rating', int, long, float, default=NotAvailable)
 
+    def __str__(self):
+        return self.url or ''
+
+    def __repr__(self):
+        return '<%s title=%r url=%r>' % (type(self).__name__, self.title, self.url)
+
     @classmethod
     def id2url(cls, _id):
         """

weboob/capabilities/image.py

@@ -39,12 +39,6 @@ class BaseImage(_BaseImage):
     thumbnail = Field('Thumbnail of the image', _BaseImage)
     data =      BytesField('Data of image')
 
-    def __str__(self):
-        return self.url
-
-    def __repr__(self):
-        return '<Image url="%s">' % self.url
-
     def __iscomplete__(self):
         return self.data is not NotLoaded
 

weboob/capabilities/video.py

@@ -35,6 +35,7 @@ class BaseVideo(BaseImage):
     """
     duration =  Field('file duration', int, long, timedelta)
 
+
 class ICapVideo(ICapImage):
     """
     Video file provider.