Anaconda无法更新scikit-learn

Question

I'm using Anaconda. When I do conda list it shows me that currently scikit-learn 0.19.1 is installed. I would like to upgrade to 0.19.2, so I'm doing

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

But then I'm getting the following error:

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

How can I install scikit-learn 0.19.2?

Answer 1

scikit-learn==0.19.2 You're missing a second = sign, so it's not finding the package

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