BUG: fix exception in repr with tuple as Series name

Author: wesm

RELEASE.rst

@@ -134,6 +134,7 @@ pandas 0.5.1
   - Fix bug in join operations between Index and Int64Index (GH #367)
   - Handle min_periods=0 case in moving window functions (GH #365)
   - Fixed corner cases in DataFrame.apply/pivot with empty DataFrame (GH #378)
+  - Fixed repr exception when Series name is a tuple
 
 Thanks
 ------

pandas/core/series.py

@@ -380,7 +380,7 @@ def _tidy_repr(self, max_vals=20):
                                                   length=False,
                                                   name=False)
         result = head + '\n...\n' + tail
-        namestr = "Name: %s, " % self.name if self.name else ""
+        namestr = "Name: %s, " % str(self.name) if self.name else ""
         result = '%s\n%sLength: %d' % (result, namestr, len(self))
         return result
 
@@ -432,7 +432,7 @@ def _format(k, v):
 
         footer = ''
         if name:
-            footer += "Name: %s" % self.name if self.name else ''
+            footer += "Name: %s" % str(self.name) if self.name else ''
 
         if length:
             if footer:

pandas/tests/test_series.py

@@ -103,15 +103,15 @@ def test_name_printing(self):
         # test small series
         s = Series([0, 1, 2])
         s.name = "test"
-        self.assert_("Name: test" in s.__repr__())
+        self.assert_("Name: test" in repr(s))
         s.name = None
-        self.assert_(not "Name:" in s.__repr__())
+        self.assert_(not "Name:" in repr(s))
         # test big series (diff code path)
         s = Series(range(0,1000))
         s.name = "test"
-        self.assert_("Name: test" in s.__repr__())
+        self.assert_("Name: test" in repr(s))
         s.name = None
-        self.assert_(not "Name:" in s.__repr__())
+        self.assert_(not "Name:" in repr(s))
 
     def test_pickle_preserve_name(self):
         unpickled = self._pickle_roundtrip(self.ts)
@@ -478,6 +478,14 @@ def test_repr(self):
         self.series[5:7] = np.NaN
         str(self.series)
 
+        # tuple name, e.g. from hierarchical index
+        self.series.name = ('foo', 'bar', 'baz')
+        repr(self.series)
+
+        biggie = Series(tm.randn(1000), index=np.arange(1000),
+                        name=('foo', 'bar', 'baz'))
+        repr(biggie)
+
     def test_to_string(self):
         from cStringIO import StringIO
         buf = StringIO()