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author | Dana Powers <dana.powers@rd.io> | 2015-03-08 23:41:46 -0700 |
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committer | Dana Powers <dana.powers@rd.io> | 2015-03-09 00:03:16 -0700 |
commit | fa4338821976a66134b08eabab79bedefc2a0c67 (patch) | |
tree | eb8743c274c57ac12f908fe9e5f64618c41f8695 /kafka/codec.py | |
parent | 4d59678dd38393fcdc2ef627ca717d5e87d0e744 (diff) | |
download | kafka-python-fa4338821976a66134b08eabab79bedefc2a0c67.tar.gz |
Take the linter to kafka/codec.py
Diffstat (limited to 'kafka/codec.py')
-rw-r--r-- | kafka/codec.py | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/kafka/codec.py b/kafka/codec.py index 56689ce..19f405b 100644 --- a/kafka/codec.py +++ b/kafka/codec.py @@ -1,8 +1,7 @@ -from io import BytesIO import gzip +from io import BytesIO import struct -import six from six.moves import xrange _XERIAL_V1_HEADER = (-126, b'S', b'N', b'A', b'P', b'P', b'Y', 0, 1, 1) @@ -10,9 +9,9 @@ _XERIAL_V1_FORMAT = 'bccccccBii' try: import snappy - _has_snappy = True + _HAS_SNAPPY = True except ImportError: - _has_snappy = False + _HAS_SNAPPY = False def has_gzip(): @@ -20,7 +19,7 @@ def has_gzip(): def has_snappy(): - return _has_snappy + return _HAS_SNAPPY def gzip_encode(payload): @@ -57,8 +56,8 @@ def snappy_encode(payload, xerial_compatible=False, xerial_blocksize=32 * 1024): """Encodes the given data with snappy if xerial_compatible is set then the stream is encoded in a fashion compatible with the xerial snappy library - The block size (xerial_blocksize) controls how frequent the blocking occurs - 32k is the default in the xerial library. + The block size (xerial_blocksize) controls how frequent the blocking + occurs 32k is the default in the xerial library. The format winds up being +-------------+------------+--------------+------------+--------------+ @@ -73,7 +72,7 @@ def snappy_encode(payload, xerial_compatible=False, xerial_blocksize=32 * 1024): length will always be <= blocksize. """ - if not _has_snappy: + if not has_snappy(): raise NotImplementedError("Snappy codec is not available") if xerial_compatible: @@ -84,7 +83,7 @@ def snappy_encode(payload, xerial_compatible=False, xerial_blocksize=32 * 1024): out = BytesIO() header = b''.join([struct.pack('!' + fmt, dat) for fmt, dat - in zip(_XERIAL_V1_FORMAT, _XERIAL_V1_HEADER)]) + in zip(_XERIAL_V1_FORMAT, _XERIAL_V1_HEADER)]) out.write(header) for chunk in _chunker(): @@ -123,13 +122,13 @@ def _detect_xerial_stream(payload): """ if len(payload) > 16: - header = header = struct.unpack('!' + _XERIAL_V1_FORMAT, bytes(payload)[:16]) + header = struct.unpack('!' + _XERIAL_V1_FORMAT, bytes(payload)[:16]) return header == _XERIAL_V1_HEADER return False def snappy_decode(payload): - if not _has_snappy: + if not has_snappy(): raise NotImplementedError("Snappy codec is not available") if _detect_xerial_stream(payload): |