after starting "swift-init proxy start" i go errors:

File "/usr/local/bin/swift-proxy-server", line 19, in <module>
 from swift.common.wsgi import run_wsgi
File "/usr/local/lib/python2.7/dist-packages/swift/common/wsgi.py", line 41, in <module>
 from swift.common.storage_policy import BindPortCache
File "/usr/local/lib/python2.7/dist-packages/swift/common/storage_policy.py" line 25, in <module>
 from pyeclib.ec_iface import ECDriver, ECDriverError, VALID_EC_TYPES
ImportError: No module named pyeclib.ec_iface