如何安装fiona 1.6？

Question

我正在尝试安装fiona=1.6，但收到以下错误

conda install fiona=1.6
WARNING: The conda.compat module is deprecated and will be removed in a future release.

Collecting package metadata: done
Solving environment: - 
The environment is inconsistent, please check the package plan carefully
The following packages are causing the inconsistency:

  - conda-forge/noarch::flask-cors==3.0.7=py_0
  - conda-forge/osx-64::blaze==0.11.3=py36_0
  - conda-forge/noarch::flask==1.0.2=py_2
failed

PackagesNotFoundError: The following packages are not available from current channels:

  - fiona=1.6 -> gdal==1.11.4

Current channels:

  - https://conda.anaconda.org/conda-forge/osx-64
  - https://conda.anaconda.org/conda-forge/noarch

To search for alternate channels that may provide the conda package you're
looking for, navigate to

    https://anaconda.org

如果我尝试安装gdal==1.11.4，我会得到以下结果

conda install -c conda-forge gdal=1.11.4

WARNING: The conda.compat module is deprecated and will be removed in a future release.
Collecting package metadata: done
Solving environment: | 
The environment is inconsistent, please check the package plan carefully
The following packages are causing the inconsistency:

  - conda-forge/noarch::flask-cors==3.0.7=py_0
  - conda-forge/osx-64::blaze==0.11.3=py36_0
  - conda-forge/noarch::flask==1.0.2=py_2
failed

PackagesNotFoundError: The following packages are not available from current channels:

  - gdal=1.11.4

Current channels:

  - https://conda.anaconda.org/conda-forge/osx-64
  - https://conda.anaconda.org/conda-forge/noarch
  - https://repo.anaconda.com/pkgs/main/osx-64
  - https://repo.anaconda.com/pkgs/main/noarch
  - https://repo.anaconda.com/pkgs/free/osx-64
  - https://repo.anaconda.com/pkgs/free/noarch
  - https://repo.anaconda.com/pkgs/r/osx-64
  - https://repo.anaconda.com/pkgs/r/noarch

To search for alternate channels that may provide the conda package you're
looking for, navigate to

    https://anaconda.org

and use the search bar at the top of the page.

这是conda info的结果

conda info

     active environment : base
    active env location : /anaconda3
            shell level : 1
       user config file : /Users/massaro/.condarc
 populated config files : /Users/massaro/.condarc
          conda version : 4.6.11
    conda-build version : 3.17.8
         python version : 3.6.8.final.0
       base environment : /anaconda3  (writable)
           channel URLs : https://conda.anaconda.org/conda-forge/osx-64
                          https://conda.anaconda.org/conda-forge/noarch
          package cache : /anaconda3/pkgs
                          /Users/massaro/.conda/pkgs
       envs directories : /anaconda3/envs
                          /Users/massaro/.conda/envs
               platform : osx-64
             user-agent : conda/4.6.11 requests/2.21.0 CPython/3.6.8 Darwin/17.5.0 OSX/10.13.4
                UID:GID : 502:20
             netrc file : None

Answer 1

Python版本

Conda Forge channel only has gdal v1.11.4 for Python 2.7, 3.4, and 3.5。您需要使用较新版本的Fiona (当前版本是1.8)，或者创建一个包含较旧Python版本的新环境。

例如,

conda create -n fiona_1_6 fiona=1.6 python=3.5

通道defaults是必需的

您面临的另一个问题是您已经从配置中删除了defaults通道(根据您的conda info)。仅使用conda-forge通道是不可能安装fiona=1.6的。我的建议是在您的配置中同时使用conda-forge和defaults，但只需将conda-forge设置为更高的优先级(如果这是您想要的)。你可以这样做，

conda config --append channels defaults

如果您确实不想包含defaults，但只需要一个临时的变通方法，那么只需使用--channels | -c标志运行第一个命令

conda create -n fiona_1_6 -c conda-forge -c defaults fiona=1.6 python=3.5

这仍将给予conda-forge优先级，但允许从defaults获取缺少的依赖项。

环境文件

如果您需要的不仅仅是Fiona，那么将一个需求文件放在一起可能会更干净，如下所示

fiona_1_6.yaml

name: fiona_1_6
channels:
 - conda-forge
 - defaults
dependencies:
 - python=3.5
 - fiona=1.6
 - osmnx

然后使用以下命令创建新环境：

conda env create -f fiona_1_6.yaml

Answer 2

按照错误消息告诉我的去做，

要搜索可能提供您正在查找的

包的备用频道，请导航到https://anaconda.org

在搜索框中输入gdal将我带到https://anaconda.org/conda-forge/gdal，它有以下安装说明：

conda install -c conda-forge gdal=1.11.4

也许可以试着安装gdal依赖项？