Be more tolerate. Return dot output if any, even there was an error.
@@ -126,7 +126,6 @@ class DotWidget(Gtk.DrawingArea):
sys.stderr.write(error + '\n')
if p.returncode != 0:
self.error_dialog(error)
- return None
return xdotcode
def _set_dotcode(self, dotcode, filename=None, center=True):