Python scikit学习更新失败，Anaconda

我用的是蟒蛇。当我执行

conda list

时，它显示当前已安装scikit learn 0.19.1。我想升级到0.19.2，所以我正在做

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

但是我得到了以下错误：

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

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如何安装scikit learn 0.19.2？

scikit learn==0.19.2

您缺少第二个

=

符号，因此它找不到包

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

---

仅适用于linux和mac用户。我猜你在用Windows。是的，我在用Windows。我现在已经尝试了pip安装-U scikit学习，它安装了0.19.2。所以，当我做conda列表时，我现在看到了0.19.2和0.19.1，但pyCharm不知何故没有识别它。当我进入pyCharm设置时，会列出0.19.1。与==相同的错误，但我认为问题是它不适用于windows。