anaconda/spyder scikit learn update 0.21.3

Question

anaconda/spyder scikit learn update 0.21.3 to 0.22.2

(base) mm@mm:~$ python --version

Python 3.7.4

(base) mm@mm:~$ anaconda --version

anaconda Command line client (version 1.7.2)

我的版本是0.21.3，但我无法更新到0.22.2，我已经尝试了多种更新方式，但我认为此版本不包括在我的频道中。我使用的是默认通道scikit-learn

如何使用或任何其他可能的方式进行更新sckit-learnconda

我的历史记录（我尝试过的命令）：

 1509  conda update conda

 1510  spyder 

 1511  conda list

 1512  conda update scikit-learn

 1513  anaconda

 1514  navigator-updater 

 1515  conda list scikit-learn

 1516  conda install scikit-learn=0.22.2

 1517  conda install scikit-learn=0.22

 1518  conda install scikit-learn==0.22.2

 1519  conda install -c intel scikit-learn

 1520  spyder 

 1521  history 

以及我在尝试时遇到的错误：conda install

(base) mm@mm:~$ conda install scikit-learn=0.22.2

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:

  - scikit-learn=0.22.2

Current channels:

  - https://repo.anaconda.com/pkgs/main/linux-64

  - https://repo.anaconda.com/pkgs/main/noarch

  - https://repo.anaconda.com/pkgs/r/linux-64

  - https://repo.anaconda.com/pkgs/r/noarch

Answer 1

使用 时，并非每个包都可从默认通道获得包的最新版本，也并不总是提供最新版本的包。conda install您可以通过两种方式检查已配置的频道中可用的频道：conda search scikit-learn为您提供与名称和可用版本匹配的所有软件包的列表。在 linux x64 上，这给了我这个：scikit-learn# Name&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Version&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Build&nbsp; Channel<shortened to last few lines of list>scikit-learn&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0.22.1&nbsp; py36h22eb022_0&nbsp; pkgs/mainscikit-learn&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0.22.1&nbsp; py36hd81dba3_0&nbsp; pkgs/mainscikit-learn&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0.22.1&nbsp; py37h22eb022_0&nbsp; pkgs/mainscikit-learn&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0.22.1&nbsp; py37hd81dba3_0&nbsp; pkgs/mainscikit-learn&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0.22.1&nbsp; py38h22eb022_0&nbsp; pkgs/mainscikit-learn&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0.22.1&nbsp; py38hd81dba3_0&nbsp; pkgs/main因此，只能从默认通道获得。您还可以使用 anaconda.org 进行检查，您可以在其中使用 saerch 函数来获取以下内容：0.22.1请注意小的灰色数字，这些数字指示（默认通道的镜像）只有版本 ，符合 。anaconda / scikit-learn0.22.1conda search output另请注意，它具有所需的版本，因此您可以使用此命令进行安装：conda-forge / scikit-learnconda&nbsp;install&nbsp;-c&nbsp;conda-forge&nbsp;scikit-learn=0.22.2