pygraphviz 的 conda-forge PackagesNotFoundError

Question

我正在尝试安装pygraphviz，但 conda 在频道中找不到它。以下是我得到的错误。 Conda-forge 已经在频道列表中，我尝试使用 -c conda-forge 但仍然无法正常工作。我也试过bioconda频道，还是不行。

> conda install -c anaconda pygraphviz
Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.

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

  - pygraphviz

Current channels:

  - https://conda.anaconda.org/anaconda/win-64
  - https://conda.anaconda.org/anaconda/noarch
  - https://repo.anaconda.com/pkgs/main/win-64
  - https://repo.anaconda.com/pkgs/main/noarch
  - https://repo.anaconda.com/pkgs/r/win-64
  - https://repo.anaconda.com/pkgs/r/noarch
  - https://repo.anaconda.com/pkgs/msys2/win-64
  - https://repo.anaconda.com/pkgs/msys2/noarch
  - https://conda.anaconda.org/conda-forge/win-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

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

根据文档，Pygraphviz 应该在bioconda 和conda-forge 中，但我仍然找不到包。 我还更新了 conda conda update conda，但仍然没有运气。

这里有什么问题吗？还是我错过了什么？

Answer 1

您从错误的渠道安装它。做：

conda install -c conda-forge pygraphviz

更新：Windows

在 Windows 上安装 pygraphviz 似乎存在挑战。假设已安装 graphiz 并将其添加到 Path，这是一个单独的程序（不是 python 库），这些解决方案可能会起作用

# Tom Hanks’ answer 
conda install graphviz pygraphviz -c alubbock

查看 SO 答案Installing Pygraphviz on Windows

Answer 2

“conda install graphviz pygraphviz -c alubbock”在 Anaconda cme.exe 终端中为我工作（以及使用其他方法的几次失败尝试）。在其他地方，我也被告知要安装 C+ 编译器，我在 Visual Studio 中完成了这项工作。但也许你可以尝试不安装 C+ 编译器