ENH: Show fx()-conversion info in BoundColumn repr.

Author: Scott Sanderson

zipline/pipeline/data/dataset.py

@@ -290,12 +290,13 @@ def metadata(self):
 
     @property
     def qualname(self):
+        """The fully-qualified name of this column.
         """
-        The fully-qualified name of this column.
-
-        Generated by doing '.'.join([self.dataset.__name__, self.name]).
-        """
-        return '.'.join([self.dataset.qualname, self.name])
+        out = '.'.join([self.dataset.qualname, self.name])
+        conversion = self._currency_conversion
+        if conversion is not None:
+            out += '.fx({!r})'.format(conversion.currency.code)
+        return out
 
     @property
     def latest(self):