python - Anaconda:从 PyPi 包构建时出错 ("Package XY missing in current linux-64 channels")

Question

我正在尝试构建 open energy modelling framework (oemof) PyPi package 的 conda 包如相应manual中所述。 oemof 包有 Pyomo包作为我预先使用合适的 recipe 安装的要求.

我的问题是我现在在构建过程中遇到错误:

 Package missing in current linux-64 channels: 
 - pyomo >=4.2.0

而我安装的 Pyomo 版本似乎高于 4.2:

cord@crd-Laptop:~/.anaconda3/bin$ ./conda update pyomo
pyomo                     4.2.10784               py35_10    cachemeorg

我的错误是什么？如何按照 conda 手册中的描述构建我的包？

提前致谢!

下面您可以看到我到目前为止所经历的步骤:

cord@crd-Laptop:~/.anaconda3/bin$ ./conda skeleton pypi oemof
Warning, the following versions were found for oemof
0.0.6
0.0.5
0.0.4
0.0.3
Using 0.0.6
Use --version to specify a different version.
Using url https://pypi.python.org/packages/3b/1f/5a82acf8cbcb3d0adb537346b2939cb6fa415e9c347f734af19c8a1b50d1/oemof-0.0.6.tar.gz (52 KB) for oemof.
Downloading oemof
Using cached download
Unpacking oemof...
done
working in /tmp/tmpd67mbpi2conda_skeleton_oemof-0.0.6.tar.gz
Using Anaconda Cloud api site https://api.anaconda.org
Fetching package metadata: ......
Solving package specifications: .........

The following NEW packages will be INSTALLED:

    mkl:        11.3.1-0     
    numpy:      1.11.0-py35_0
    openssl:    1.0.2g-0     
    pip:        8.1.1-py35_1 
    python:     3.5.1-0      
    pyyaml:     3.11-py35_1  
    readline:   6.2-2        
    setuptools: 20.7.0-py35_0
    sqlite:     3.9.2-0      
    tk:         8.5.18-0     
    wheel:      0.29.0-py35_0
    xz:         5.0.5-1      
    yaml:       0.1.6-0      
    zlib:       1.2.8-0      

Linking packages ...
[      COMPLETE      ]|###########################################################################################| 100%
Applying patch: '/tmp/tmpd67mbpi2conda_skeleton_oemof-0.0.6.tar.gz/pypi-distutils.patch'
patching file core.py
Hunk #1 succeeded at 167 with fuzz 2 (offset 1 line).
Using "UNKNOWN" for the license
Writing recipe for oemof
Done

cord@crd-Laptop:~/.anaconda3/bin$ ./conda build oemof
Removing old build environment
Removing old work directory
BUILD START: oemof-0.0.6-py35_0
Using Anaconda Cloud api site https://api.anaconda.org
Fetching package metadata: ......
Solving package specifications: .
 Package missing in current linux-64 channels: 
  - pyomo >=4.2.0
Missing dependency pyomo, but found recipe directory, so building pyomo first
Ignoring non-recipe: pyomo
Removing old build environment
Removing old work directory
BUILD START: oemof-0.0.6-py35_0
Fetching package metadata: ......
Solving package specifications: .
 Package missing in current linux-64 channels: 
  - pyomo >=4.2.0

cord@crd-Laptop:~/.anaconda3/bin$ ./conda update pyomo
Using Anaconda Cloud api site https://api.anaconda.org
Fetching package metadata: ....
# All requested packages already installed.
# packages in environment at /home/cord/.anaconda3:
#
pyomo                     4.2.10784               py35_10    cachemeorg
cord@crd-Laptop:~/.anaconda3/bin$ 

Answer 1

对于您的构建步骤，请尝试conda build -c cachemeorg oemof。

我认为这里的问题是 conda build 在构建时创建了一个全新的 conda 环境，并且它将在该环境中安装所有包依赖项，包括 pyomo。它通过在 channel 中查找它们来安装它们，而不是通过根目录中当前安装的软件包来安装它们。在此示例中，您已将 pyomo 作为软件包安装，但它并非来自 channel 列表中的 channel ，因为您自己安装了它。因此，在搜索 conda channel 时，它无法找到 pyomo 包。但是，如果我们将一个 channel 添加到 conda build 正在查看的列表中(通过 -c 标志)，其中包含 pyomo 那么它应该可以工作。看起来cachemeorg有这个package因此上面的命令应该有效。