使用Anaconda安装Python环境

Question

我刚刚尝试使用终端使用自制软件安装Anaconda，并收到以下消息：

L-MBP:agda-stdlib le$ brew install conda 
Updating Homebrew...
Error: No available formula with the name "conda"

==> Searching for a previously deleted formula (in the last month)...
Warning: homebrew/core is shallow clone. To get complete history run:
  git -C "$(brew --repo homebrew/core)" fetch --unshallow
Error: No previously deleted formula found.

==> Searching for similarly named formulae...
Error: No similarly named formulae found.

==> Searching taps...
==> Searching taps on GitHub...
Error: No formulae found in taps.

L-MBP:agda-stdlib le$ brew install anaconda
Error: No available formula with the name "anaconda" 
Found a cask named "anaconda" instead. Try
  brew cask install anaconda``

L-MBP:agda-stdlib le$ brew cask install anaconda
==> Caveats
Cask anaconda installs files under /usr/local. The presence of such
files can cause warnings when running `brew doctor`, which is considered
to be a bug in Homebrew Cask.
...
installation finished.
==> Changing ownership of paths required by anaconda; your password may be necessary
🍺  anaconda was successfully installed!

L-MBP:agda-stdlib le$ conda create --name snakes python=3.7.2
-bash: conda: command not found
L-MBP:agda-stdlib le$ conda -bash: conda: command not found

当我尝试打开anaconda和创建Python环境时，我收到消息“command not found”

有什么问题

Answer 1

通过自制软件安装anaconda

通过执行以下命令通过brew cask安装anaconda

➜ brew cask install anaconda   (or)
➜ brew install  cask anaconda [Newer versions of Homebrew]
.
.
.
PREFIX=/usr/local/anaconda3
.
.
.
🍺  anaconda was successfully installed!

让我们运行jupyter笔记本电脑

尝试在终端中执行jupyter notebook

这不管用…为什么？因为我们的shell不知道anaconda文件夹在哪里，所以让我们将该文件夹添加到shell路径中

设置环境路径。

在 ~/.zshrc文件的顶部插入一行，因为当您尝试在终端上执行python时，它将首先搜索文件夹/usr/local/anaconda3/bin，然后再搜索默认操作系统路径，这意味着您可以执行jupyter notebook和python

export PATH="/usr/local/anaconda3/bin:$PATH"

重新启动终端或使用source ~/.zshrc重新加载shell环境并执行jupyter notebook。输出如下

参考：Install anaconda on macOS with Homebrew

Answer 2

要使用自制软件安装Anaconda，请执行以下操作：

1. 转到终端并键入brew cask install anaconda，然后点击回车键
2. 确保水蟒在你的PATH里。您需要打开终端的配置文件（通常是mac上的~/.zshrc），并找到开始PATH=的行。在附近添加一行，上面写着：export PATH="/usr/local/anaconda3/bin:$PATH"。这是自制软件安装Anaconda的地方
3. 退出并重新启动终端。这是确保加载新配置的最简单方法
4. 测试它是否与which conda一起工作

现在应该可以使用conda命令了

编辑：正如本主题中类似的帖子所指出的，conda activate的工作方式随着版本的变化而变化。如果上面给出的结果不够好，请尝试以下方法来启用conda activate和conda deactivate命令

对于bash或zsh，放置

export PATH="/opt/conda/bin:$PATH"

在~/.zshrc文件中，将基本环境置于路径上，但不一定实际激活该环境。尝试移除该线路，并将其替换为

. ~/Anaconda3/etc/profile.d/conda.sh
conda activate base

按照official Anaconda 4.4.0 release notes中的建议

如果将~/Anaconda3放在其他地方，请将其替换为安装Anaconda的路径

运行conda activate base将基本环境置于路径上，并允许您访问基本环境中的可执行文件

其他资源：

• Anaconda和JetBrains有合作关系。您可以使用自制软件下载PyCharm IDE:brew cask install pycharm-ce-with-anaconda-pluginHere is the link to the tap

• Official Anaconda documentation on installing for MacOS

• Link to the canonical Homebrew cask for Anaconda

• Official Anaconda 4.4.0 Release Notes