ImportError: cannot import name 'constants'

[Joel Doerr]

Hello,

Looking at the Trex control plane documentation and unable to get past the first step. Do I need to recompile the libs?

[root@trex-tool doc]# uname -a

Linux trex-tool 3.10.0-862.2.3.el7.x86_64 #1 SMP Wed May 9 18:05:47 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Thanks

[root@user-lnx v2.41]# ./trex_daemon_server start

Traceback (most recent call last):

  File "./trex_daemon_server", line 34, in <module>

    import trex_server

  File "/root/v2.41/automation/trex_control_plane/server/trex_server.py", line 9, in <module>

    import zmq

  File "/root/v2.41/external_libs/pyzmq-14.5.0/python3/intel/ucs4/64bit/zmq/__init__.py", line 49, in <module>

    from zmq import backend

  File "/root/v2.41/external_libs/pyzmq-14.5.0/python3/intel/ucs4/64bit/zmq/backend/__init__.py", line 41, in <module>

    reraise(*exc_info)

  File "/root/v2.41/external_libs/pyzmq-14.5.0/python3/intel/ucs4/64bit/zmq/utils/sixcerpt.py", line 34, in reraise

    raise value

  File "/root/v2.41/external_libs/pyzmq-14.5.0/python3/intel/ucs4/64bit/zmq/backend/__init__.py", line 29, in <module>

    _ns = select_backend(first)

  File "/root/v2.41/external_libs/pyzmq-14.5.0/python3/intel/ucs4/64bit/zmq/backend/select.py", line 27, in select_backend

    mod = __import__(name, fromlist=public_api)

  File "/root/v2.41/external_libs/pyzmq-14.5.0/python3/intel/ucs4/64bit/zmq/backend/cython/__init__.py", line 6, in <module>

    from . import (constants, error, message, context,

ImportError: cannot import name 'constants'

[Yaroslav Brustinov]

Hi,

What is your Python3 version?

Could you try 2.7 or 3.4 or 3.5

Thanks,

Yaroslav.

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[Joel Doerr]

Indeed. That fixed the issue going to 2.7.

Thanks!

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[Yaroslav Brustinov]

Hi,

You are welcome, but could you specify which Python3 version you had with the problem?

Thanks,
Yaroslav

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[dreb...@gmail.com]

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Hi Yaroslav,

I am using Trex v2.47 and python 2.7.6 and I have the same issue.
I don't see the issue with Trex v2.42.

Thanks,
Dejan

[Yaroslav Brustinov]

Hi,

You can not have the same issue as ZMQ library was changed between v2.47 and version in original mail.

Please show the error you get.

Thanks,

Yaroslav.

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[dreb...@gmail.com]

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>
> For more options, visit https://groups.google.com/d/optout.

Yes, sorry you're right my mistake.
Actually I had some problems with Trex v2.47 build. I cleaned the build and recompile it again and now it's ok.