ImportError: No module named libxml2 within Travis build

Question

我知道之前有人问过这个问题，但我的问题出在 travis 构建中。我已经安装了文档中列出的所有依赖项，

检查我的 travis 配置。

language: python
python:
  - "2.7"
install:
  - pip install -r requirements.txt
  - pip install PyXmlSec --allow-external PyXMLSec --allow-insecure PyXMLSec
  - pip install coveralls
script: 
  coverage run --source=pytrustnfe setup.py nosetests
before_install:
  - sudo apt-get update -qq
  - sudo apt-get install -qq libxml2-dev libxmlsec1-dev libxslt-dev 
  - sudo apt-get install -qq python-dev python-lxml python-libxml2
  - sudo apt-get install -qq python-libxslt1 libxml2
  - sudo apt-get install -qq build-essential
after_success:
  coveralls

但我无法将其发送到 运行:

File "/home/travis/build/danimaribeiro/PyTrustNFe/pytrustnfe/servicos/assinatura.py", line 6, in <module>
    import xmlsec, libxml2
File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/xmlsec.py", line 33, in <module>
    import libxml2
ImportError: No module named libxml2

我已经没有线索了。 我的存储库：https://github.com/danimaribeiro/PyTrustNFe

为了将来参考，这里提供了此问题的一种解决方案： http://danielnouri.org/notes/2012/11/23/use-apt-get-to-install-python-dependencies-for-travis-ci/

Answer 1

线索在错误信息中；您 运行 某些组件针对系统 Python，而其他组件针对虚拟环境；我没有看到在你的脚本中设置。

File "/home/travis/build/danimaribeiro/PyTrustNFe/pytrustnfe/servicos/assinatura.py", line 6, in import xmlsec, libxml2 File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/xmlsec.py", line 33, in import libxml2 ImportError: No module named libxml2