Windows : couchbase-cli is broken

C:\Program Files\Couchbase\Server\bin>couchbase-cli.exe node-init -c 127.0.0.1 -u Administrator -p password --node-init-data-path C:\data --node-init-hostname localhost

Traceback (most recent call last):

  File "couchbase-cli", line 20, in <module>

  File "couchbase-cli", line 14, in main

  File "cbmgr.pyc", line 367, in parse

  File "cbmgr.pyc", line 320, in parse

  File "argparse.pyc", line 1725, in parse_args

  File "argparse.pyc", line 1754, in parse_known_args

  File "argparse.pyc", line 1960, in _parse_known_args

  File "argparse.pyc", line 1900, in consume_optional

  File "argparse.pyc", line 1828, in take_action

  File "cbmgr.pyc", line 221, in __call__

  File "cbmgr.pyc", line 78, in is_ipv6_raw_addr

AttributeError: 'module' object has no attribute 'inet_pton'