python – ImportError：无法导入名称常量

$python --version
Python 2.7.6
$sudo find /usr -name "*pyzmq*"
/usr/local/lib/python2.7/dist-packages/pyzmq-14.5.0.egg-info
/usr/lib/python2.7/dist-packages/pyzmq-14.0.1.egg-info

以下是我正在尝试运行的代码：

import zhelpers

context = zmq.Context.instance()
server = context.socket(zmq.ROUTER)
server.bind("tcp://*:5678")

while (1):
    address,empty,data = server.recv_multipart()

    print("address = %s,data = %d" % (address,int(data)))

    data_i = int(data) + 10
    server.send_multipart([
        address,b'',str(data_i),])

但是,我得到以下错误,并不知道如何解决这个问题：

Traceback (most recent call last):
  File "reqrep_server.py",line 8,in <module>
    import zhelpers
  File "/home/arun/pyzmq_server/zhelpers.py",line 11,in <module> 
    import zmq
  File "/home/arun/pyzmq_server/zmq/__init__.py",line 66,in <module>
    from zmq import backend
  File "/home/arun/pyzmq_server/zmq/backend/__init__.py",line 41,in <module>
    reraise(*exc_info)
  File "/home/arun/pyzmq_server/zmq/backend/__init__.py",line 29,in <module>
    _ns = select_backend(first)
  File "/home/arun/pyzmq_server/zmq/backend/select.py",line 27,in select_backend
    mod = __import__(name,fromlist=public_api)
  File "/home/arun/pyzmq_server/zmq/backend/cython/__init__.py",line 6,in <module>
    from . import (constants,error,message,context,socket,utils,_poll,_version,_device)
ImportError: cannot import name constants

我已经复制了整个zmq文件夹并将其作为我的.py文件放在该级别中.

请帮忙！

编辑：

我已经删除了这两个版本的pyzmq并按照指示重新安装了最新的pyzmq(这次捆绑了libzmq).

$sudo find /usr -name "*pyzmq*"
/usr/local/lib/python2.7/dist-packages/pyzmq-14.7.0-py2.7.egg-info

$sudo find /usr -name "*libzmq*"
/usr/local/lib/libzmq.so
/usr/local/lib/libzmq.la
/usr/local/lib/libzmq.so.5.0.0
/usr/local/lib/pkgconfig/libzmq.pc
/usr/local/lib/libzmq.so.5
/usr/local/lib/python2.7/dist-packages/zmq/libzmq.so
/usr/local/lib/python2.7/dist-packages/zmq/backend/cython/libzmq.pxd
/usr/local/lib/libzmq.a

但这并没有解决问题.我收到了同样的错误！

编辑：

问题解决了！我是Python的新手,并没有遵循适当的文件夹/模块结构进行导入.然而回溯并不是很有帮助.