Address review comments

Author: bdrosen96

doc/source/whatsnew/v0.19.0.txt

@@ -271,7 +271,7 @@ API changes
 - ``__setitem__`` will no longer apply a callable rhs as a function instead of storing it. Call ``where`` directly to get the previous behavior. (:issue:`13299`)
 - Passing ``Period`` with multiple frequencies to normal ``Index`` now returns ``Index`` with ``object`` dtype (:issue:`13664`)
 - ``PeriodIndex.fillna`` with ``Period`` has different freq now coerces to ``object`` dtype (:issue:`13664`)
-
+- More informative exceptions are passed through the parser. The exception type would now be the original exception type instead of ``CParserError``. (:issue `13652`)
 
 .. _whatsnew_0190.api.tolist:
 

pandas/io/tests/parser/common.py

@@ -47,6 +47,11 @@ def test_empty_decimal_marker(self):
             self.read_csv(StringIO(data), decimal='')
 
     def test_bad_stream_exception(self):
+        # Issue 13652:
+        # This test validates that both python engine
+        # and C engine will raise UnicodeDecodeError instead of
+        # c engine raising CParserError and swallowing exception
+        # that caused read to fail.
         handle = open(self.csv_shiftjs, "rb")
         codec = codecs.lookup("utf-8")
         utf8 = codecs.lookup('utf-8')
@@ -60,6 +65,7 @@ def test_bad_stream_exception(self):
             msg = "'utf8' codec can't decode byte"
         with tm.assertRaisesRegexp(UnicodeDecodeError, msg):
             self.read_csv(stream)
+        stream.close()
 
     def test_read_csv(self):
         if not compat.PY3: