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python - Anaconda 更新 scikit-learn 失败

问题描述

我正在使用蟒蛇。当我这样做conda list时，它显示当前已安装 scikit-learn 0.19.1。我想升级到 0.19.2，所以我在做

conda config --append channels conda-forge
conda install scikit-learn=0.19.2

但后来我收到以下错误：

PackagesNotFoundError: The following packages are not available from current cha
nnels:

  - scikit-learn=0.19.2

Current channels:

  - https://repo.anaconda.com/pkgs/main/win-64
  - https://repo.anaconda.com/pkgs/main/noarch
  - https://repo.anaconda.com/pkgs/free/win-64
  - https://repo.anaconda.com/pkgs/free/noarch
  - https://repo.anaconda.com/pkgs/r/win-64
  - https://repo.anaconda.com/pkgs/r/noarch
  - https://repo.anaconda.com/pkgs/pro/win-64
  - https://repo.anaconda.com/pkgs/pro/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

如何安装 scikit-learn 0.19.2？

标签： pythonscikit-learnanaconda

解决方案

scikit-learn==0.19.2您缺少第二个=标志，因此找不到包裹

$ pip install scikit-learn=0.19.1
Invalid requirement: 'scikit-learn=0.19.1'
= is not a valid operator. Did you mean == ?

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