Try writing to file name instead to get around python3 errors

Author: jtratner

pandas/tests/io/parser/test_parsers.py

@@ -104,10 +104,9 @@ def read_table(self, *args, **kwds):
 
 class TestParameterValidation(object):
     def test_unknown_engine(self):
-        with tempfile.TemporaryFile() as fp:
+        with tempfile.NamedTemporaryFile() as fp:
             df = tm.makeDataFrame()
-            df.to_csv(fp)
+            df.to_csv(fp.name)
             fp.flush()
-            fp.seek(0)
             with self.assertRaisesRegex(ValueError, 'Unknown engine'):
-                read_csv(fp, engine='pyt')
+                read_csv(fp.name, engine='pyt')