summaryrefslogtreecommitdiff
path: root/sphinx/util
diff options
context:
space:
mode:
Diffstat (limited to 'sphinx/util')
-rw-r--r--sphinx/util/png.py6
1 files changed, 4 insertions, 2 deletions
diff --git a/sphinx/util/png.py b/sphinx/util/png.py
index ca2273c4..59c32715 100644
--- a/sphinx/util/png.py
+++ b/sphinx/util/png.py
@@ -12,12 +12,14 @@
import struct
import binascii
+from sphinx.util.pycompat import b
+
LEN_IEND = 12
LEN_DEPTH = 22
DEPTH_CHUNK_LEN = struct.pack('!i', 10)
-DEPTH_CHUNK_START = 'tEXtDepth\x00'
-IEND_CHUNK = '\x00\x00\x00\x00IEND\xAE\x42\x60\x82'
+DEPTH_CHUNK_START = b('tEXtDepth\x00')
+IEND_CHUNK = b('\x00\x00\x00\x00IEND\xAE\x42\x60\x82')
def read_png_depth(filename):