来自avro/datafile.py

from avro/datafile.py

try:
  import snappy
  has_snappy = True
except ImportError:
  has_snappy = False

...

# Codecs supported by container files:
VALID_CODECS = frozenset(['null', 'deflate'])
if has_snappy:
  VALID_CODECS = frozenset.union(VALID_CODECS, ['snappy'])

所以您必须安装python-snappy lib

so you have to install python-snappy lib