diff options
Diffstat (limited to 'sphinx/util/png.py')
| -rw-r--r-- | sphinx/util/png.py | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/sphinx/util/png.py b/sphinx/util/png.py index 5450bccf..50c72efd 100644 --- a/sphinx/util/png.py +++ b/sphinx/util/png.py @@ -12,18 +12,18 @@ 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): - """ - Read the special tEXt chunk indicating the depth from a PNG file. - """ + """Read the special tEXt chunk indicating the depth from a PNG file.""" result = None f = open(filename, 'rb') try: @@ -39,8 +39,8 @@ def read_png_depth(filename): def write_png_depth(filename, depth): - """ - Write the special tEXt chunk indicating the depth to a PNG file. + """Write the special tEXt chunk indicating the depth to a PNG file. + The chunk is placed immediately before the special IEND chunk. """ data = struct.pack('!i', depth) |