python之travis-ci build on Python3.4 六个 urllib 不会安装

我有一个 go 项目，它具有 Python 3.4 依赖项(外部命令)。我有一组称为 reqs.txt 的要求。我使用 virtualenv 来确保我在自己的 venv 中，这样我就可以安装我的依赖项。

我收到以下错误(下面是完整日志):

    ImportError: No module named 'six' 

这令人沮丧，因为就在这一行之前，安装了 six 包。

我的 .travis.yml 文件

sudo: required 
language: go 
go: 
  - 1.7 
addons: 
  apt: 
    sources: 
      - deadsnakes # source required so it finds the package definition below 
    packages: 
      - python3.4 
before_install: 
  - go get github.com/axw/gocov/gocov 
  - go get github.com/mattn/goveralls 
  - if ! go get code.google.com/p/go.tools/cmd/cover; then go get golang.org/x/tools/cmd/cover; fi 
  - sudo pip install virtualenv 
  - virtualenv -p `which python3.4` .venv 
  - source .venv/bin/activate 
  - python -V 
  - pip -V 
  - pip install -r cmd/refframes/reqs.txt 
  - wget -O cmd/refframes/spicekernels/de430.bsp https://naif.jpl.nasa.gov/pub/naif/generic_kernels/spk/planets/de430.bsp 
script: 
  - python cmd/refframes/tests.py 
  - go test -v -timeout=30m -covermode=count -coverprofile=coverage.out 
  #- $HOME/gopath/bin/goveralls -coverprofile=coverage.out -service=travis-ci 
  - $HOME/gopath/bin/goveralls -package github.com/ChristopherRabotin/smd -service=travis-ci 

travis 日志

$ pip install -r cmd/refframes/reqs.txt 
You are using pip version 6.0.7, however version 9.0.1 is available. 
You should consider upgrading via the 'pip install --upgrade pip' command. 
Collecting appdirs==1.4.0 (from -r cmd/refframes/reqs.txt (line 1)) 
  Downloading appdirs-1.4.0-py2.py3-none-any.whl 
Collecting numpy==1.12.0 (from -r cmd/refframes/reqs.txt (line 2)) 
  Downloading numpy-1.12.0.zip (4.8MB) 
    100% |################################| 4.8MB 127kB/s  
    Running from numpy source directory. 
Collecting packaging==16.8 (from -r cmd/refframes/reqs.txt (line 3)) 
  Downloading packaging-16.8-py2.py3-none-any.whl 
Collecting py==1.4.32 (from -r cmd/refframes/reqs.txt (line 4)) 
  Downloading py-1.4.32-py2.py3-none-any.whl (82kB) 
    100% |################################| 86kB 5.0MB/s  
Collecting pyparsing==2.1.10 (from -r cmd/refframes/reqs.txt (line 5)) 
  Downloading pyparsing-2.1.10-py2.py3-none-any.whl (56kB) 
    100% |################################| 57kB 6.5MB/s  
Collecting pytest==3.0.6 (from -r cmd/refframes/reqs.txt (line 6)) 
  Downloading pytest-3.0.6-py2.py3-none-any.whl (172kB) 
    100% |################################| 176kB 2.9MB/s  
Collecting six==1.10.0 (from -r cmd/refframes/reqs.txt (line 7)) 
  Downloading six-1.10.0-py2.py3-none-any.whl 
Collecting spiceypy==1.1.0 (from -r cmd/refframes/reqs.txt (line 8)) 
  Downloading spiceypy-1.1.0.tar.gz (213kB) 
    100% |################################| 217kB 2.4MB/s  
    Traceback (most recent call last): 
      File "<string>", line 20, in <module> 
      File "/tmp/pip-build-l48p479i/spiceypy/setup.py", line 5, in <module> 
        import getspice 
      File "/tmp/pip-build-l48p479i/spiceypy/getspice.py", line 13, in <module> 
        import six.moves.urllib as urllib 
    ImportError: No module named 'six' 
    Complete output from command python setup.py egg_info: 
    Traceback (most recent call last): 
 
      File "<string>", line 20, in <module> 
 
      File "/tmp/pip-build-l48p479i/spiceypy/setup.py", line 5, in <module> 
 
        import getspice 
 
      File "/tmp/pip-build-l48p479i/spiceypy/getspice.py", line 13, in <module> 
 
        import six.moves.urllib as urllib 
 
    ImportError: No module named 'six' 
 
    ---------------------------------------- 
    Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-l48p479i/spiceypy 
The command "pip install -r cmd/refframes/reqs.txt" failed and exited with 1 during . 
Your build has been stopped. 

请您参考如下方法:

解决方案是要求在其他 python 要求之前安装 six。不知道为什么，但这行得通。

这是我更新的 .travis.yml 文件:

language: go 
go: 
  - 1.7 
addons: 
  apt: 
    sources: 
      - deadsnakes # source required so it finds the package definition below 
    packages: 
      - python3.4 
      - python3.4-dev 
before_install: 
  - go get github.com/axw/gocov/gocov 
  - go get github.com/mattn/goveralls 
  - if ! go get code.google.com/p/go.tools/cmd/cover; then go get golang.org/x/tools/cmd/cover; fi 
  - sudo pip install virtualenv 
  - virtualenv -p `which python3.4` .venv 
  - source .venv/bin/activate 
  - python -V 
  - pip -V 
  - pip install six 
  - pip install -r cmd/refframes/reqs.txt 
  - wget -O cmd/refframes/spicekernels/de430.bsp https://naif.jpl.nasa.gov/pub/naif/generic_kernels/spk/planets/de430.bsp 
script: 
  - python cmd/refframes/tests.py 
  - go test -v -timeout=30m -covermode=count -coverprofile=coverage.out 
  - $HOME/gopath/bin/goveralls -coverprofile=coverage.out -service=travis-ci 
env: 
  - SMD_CONFIG=./