From c2cbdf9c44a0dd55b8f19ccb03c3ba449b159223 Mon Sep 17 00:00:00 2001
From: Oleg Shteynbuk <oleg.shteynbuk@gmail.com>
Date: Sun, 4 Jun 2017 23:29:23 -0400
Subject: [PATCH] changed to using existing function _ensure_encoded in
 parsers.pyx

---
 pandas/_libs/parsers.pyx | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/pandas/_libs/parsers.pyx b/pandas/_libs/parsers.pyx
index 5e4b262b0d013..fe1656b78eaf6 100644
--- a/pandas/_libs/parsers.pyx
+++ b/pandas/_libs/parsers.pyx
@@ -275,16 +275,10 @@ cdef extern from "parser/io.h":
 
 DEFAULT_CHUNKSIZE = 256 * 1024
 
-
-def c_type_conv(st):
-    cdef bytes py_bytes = st.encode()
-    return py_bytes
-
-
 # common NA values
 # no longer excluding inf representations
 # '1.#INF','-1.#INF', '1.#INF000000',
-_NA_VALUES = [c_type_conv(x) for x in parsers._NA_VALUES]
+_NA_VALUES =_ensure_encoded(in parsers._NA_VALUES)
 
 
 cdef class TextReader: