Python OSX - /usr/local/lib/python2.7/site-packages/easysnmp/interface.so中的平面命名空間

Question

我可以在這篇文章中看到類似的問題https://github.com/fgimian/easysnmp/issues/42但我不確定是否同樣的問題適用於我。

基本上我已經通過home-brew安裝了python

alexs-mbp:~ alex$ which python
/usr/local/bin/python
alexs-mbp:~ alex$

並通過pip和net-snmp通過home-brew安裝easysnmp

alexs-mbp:~alex$ python
Python 2.7.13 (default, Dec 18 2016, 07:03:39) 
[GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.42.1)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import easysnmp
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/site-packages/easysnmp/__init__.py", line 1, in <module>
    from .easy import (  # noqa
  File "/usr/local/lib/python2.7/site-packages/easysnmp/easy.py", line 3, in <module>
    from .session import Session
  File "/usr/local/lib/python2.7/site-packages/easysnmp/session.py", line 8, in <module>
    from . import interface
ImportError: dlopen(/usr/local/lib/python2.7/site-packages/easysnmp/interface.so, 2): Symbol not found: _netsnmp_transport_config_compare
  Referenced from: /usr/local/lib/python2.7/site-packages/easysnmp/interface.so
  Expected in: flat namespace
 in /usr/local/lib/python2.7/site-packages/easysnmp/interface.so

使用brew進行檢查時，我也收到此消息

 Warning: net-snmp is a keg-only and another version is linked to opt.
Use `brew install --force` if you want to install this version
alexs-mbp:~ alex$ brew install net-snmp --force
Warning: net-snmp-5.7.3 already installed, it's just not linked.
alexs-mbp:~ alex$ 

我做了一個brew鏈接，它給了我以下

Warning: net-snmp is a keg-only and another version is linked to opt.
Use `brew install --force` if you want to install this version
alexs-mbp:~ alex$ brew install net-snmp --force
Warning: net-snmp-5.7.3 already installed, it's just not linked.
alexs-mbp:~ alex$ brew link net-snmp
Warning: net-snmp is keg-only and must be linked with --force
Note that doing so can interfere with building software.

If you need to have this software first in your PATH instead consider running:
  echo 'export PATH="/usr/local/opt/net-snmp/bin:$PATH"' >> ~/.bash_profile
  echo 'export PATH="/usr/local/opt/net-snmp/sbin:$PATH"' >> ~/.bash_profile
alexs-mbp:~ alexwilloughby$ brew link net-snmp --force
Linking /usr/local/Cellar/net-snmp/5.7.3... 182 symlinks created

If you need to have this software first in your PATH instead consider running:
  echo 'export PATH="/usr/local/opt/net-snmp/bin:$PATH"' >> ~/.bash_profile
  echo 'export PATH="/usr/local/opt/net-snmp/sbin:$PATH"' >> ~/.bash_profile
alexs-mbp:~ alex$ 

啟動python和導入easysnmp仍然給我同樣的錯誤，有誰知道如何解決這個問題？

謝謝

Answer 1

問題似乎源於net-snmp的homebrew安裝和easysnmp的pip安裝的不兼容性。 嘗試卸載easysnmp並從此fork重新安裝https://github.com/kamakazikamikaze/easysnmp ：

pip uninstall easysnmp
pip install git+https://github.com/kamakazikamikaze/easysnmp.git