diff options
Diffstat (limited to 'kafka/util.py')
| -rw-r--r-- | kafka/util.py | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kafka/util.py b/kafka/util.py index 6d9d307..e95d51d 100644 --- a/kafka/util.py +++ b/kafka/util.py @@ -10,7 +10,13 @@ from kafka.common import BufferUnderflowError def crc32(data): - return binascii.crc32(data) & 0xffffffff + crc = binascii.crc32(data) + # py2 and py3 behave a little differently + # CRC is encoded as a signed int in kafka protocol + # so we'll convert the py3 unsigned result to signed + if six.PY3 and crc >= 2**31: + crc -= 2**32 + return crc def write_int_string(s): |