Fix a typo, find a bug.

birdvisu/annotations/analysis.py

@@ -96,7 +96,7 @@ class ShortestPathTree(Annotator):
 				self.e = edge
 			def __lt__(self, other):
 				return (self.mt, self.dist) < (other.mt, other.dist)
-			def __ew__(self, other):
+			def __eq__(self, other):
 				return (self.mt, self.dist) == (other.mt, other.dist)
 		heap = [CE(e.cost, e) for e in topo.vertices[self.start_vtxid].outgoing_edges]
 		heap.sort()

poor_mans_visualisation.py

@@ -268,6 +268,7 @@ class MainWindow(QtWidgets.QMainWindow):
 			ann = self.annot_topo.annotations[self.highlighter]
 			for shk in ann.for_vertex.keys() | ann.for_edge.keys():
 				shapes[shk].setPen(QtGui.QPen(QtGui.QColor('blue')))
+			# FIXME: also color edges in opposite direction
 		for sh in shapes.values(): self.scene.addItem(sh)
 
 main_window = MainWindow()