如何解决anaconda和virtualenv冲突的问题

2022-01-10 00:00:00 python virtualenv ubuntu-14.04 anaconda

问题描述

我一直在使用 virtualenv，然后我还安装了 anaconda.刚才我尝试使用source activate helloworld之类的anaconda方式激活虚拟环境.(事实上​​，我不记得这是否正是我输入的命令).然后环境就被激活了.但是当我尝试运行笔记本时，有人说即使我已经在那个环境中安装了一些库也不存在.直到那时我才意识到我激活了错误的环境.然后我关闭选项卡和 cd 到 hellowworld 并执行 source bin/activate.但是为时已晚.我把它作为输出 prepending/home/lcc/anaconda3/envs/bin 到 PATH 并且环境未按预期激活.你知道如何解决这个问题吗?谢谢！

I was using virtualenv all the time and then I had also installed anaconda. Just now I tried to activate a virtual environment using the way of anaconda like source activate helloworld. (Indeed I don't remember if this is exactly the command I typed in). And then the environment had been activated. But when I tried to run the notebook, it was said that some libraries didn't exist even if I had installed them already in that environment. Not until then did I realize I had activated the wrong environment. And then I close the tab and cd to hellowworld and did source bin/activate. But it was too late. I got this as the output prepending /home/lcc/anaconda3/envs/bin to PATH and the environment was not activated expectedly. Do you know how to solve this issue? Thanks!

这里是/hello/world下activate文件的完整内容:

Here is the full content of the activate file under /hello/world:

#!/bin/bash

# Determine the directory containing this script
if [[ -n $BASH_VERSION ]]; then
    _SCRIPT_LOCATION=${BASH_SOURCE[0]}
    SHELL="bash"
elif [[ -n $ZSH_VERSION ]]; then
    _SCRIPT_LOCATION=${funcstack[1]}
    SHELL="zsh"
else
    echo "Only bash and zsh are supported"
    return 1
fi
_CONDA_DIR=$(dirname "$_SCRIPT_LOCATION")

if [ $# -gt 1 ]; then
    (>&2 echo "Error: did not expect more than one argument.")
    (>&2 echo "    (Got $@)")
    return 1
fi

case "$(uname -s)" in
    CYGWIN*|MINGW32*|MSYS*)
        EXT=".exe"
        ;;
    *)
        EXT=""
        ;;
esac

# Export whatever PS setting we have, so it is available to Python subprocesses
export PS1

# Ensure that this script is sourced, not executed
# Also note that errors are ignored as `activate foo` doesn't generate a bad
# value for $0 which would cause errors.
if [[ -n $BASH_VERSION ]] && [[ "$(basename "$0" 2> /dev/null)" == "activate" ]]; then
    (>&2 echo "Error: activate must be sourced. Run 'source activate envname'
instead of 'activate envname'.
")
    "$_CONDA_DIR/conda" ..activate $SHELL$EXT -h
    exit 1
fi

"$_CONDA_DIR/conda" ..checkenv $SHELL$EXT "$@"
if (( $? != 0 )); then
    return 1
fi

# Ensure we deactivate any scripts from the old env
#   Note: this empties $@.  Preserve a copy.
args=$@
source "$_CONDA_DIR/deactivate"

_NEW_PATH=$("$_CONDA_DIR/conda" ..activate $SHELL$EXT "$args")
if (( $? == 0 )); then
    export CONDA_PATH_BACKUP="$PATH"
    # export this to restore it upon deactivation
    export CONDA_OLD_PS1=$PS1

    export PATH="$_NEW_PATH"
    # Get first path (should be full path prefix of our env)
    # inner string extraction pulls off first path
    # outer string removes /bin if present (on Unix)
    firstpath=${PATH%%:*}
    export CONDA_DEFAULT_ENV="$(echo ${firstpath} | sed "s|/bin$||")" &>/dev/null
    # Legacy support: CONDA_DEFAULT_ENV used to be either env name or full path if given as path.
    #    CONDA_DEFAULT_ENV is now always full path.
    #    Keep CONDA_ENV_PATH around, and have it mirror CONDA_DEFAULT_ENV.
    #    Last date of change: 2016-04-18
    export CONDA_ENV_PATH=$CONDA_DEFAULT_ENV

    export PS1="$( "$_CONDA_DIR/conda" ..setps1 $SHELL$EXT "$args" )"

    # Load any of the scripts found $PREFIX/etc/conda/activate.d AFTER activation
    _CONDA_D="${CONDA_DEFAULT_ENV}/etc/conda/activate.d"
    if [[ -d "$_CONDA_D" ]]; then
        IFS=$(echo -en "
")&>/dev/null  && for f in $(find "$_CONDA_D" -iname "*.sh"); do source "$f"; done
    fi
else
    return $?
fi

if [[ -n $BASH_VERSION ]]; then
    hash -r
elif [[ -n $ZSH_VERSION ]]; then
    rehash
else
    echo "Only bash and zsh are supported"
    return 1
fi

解决方案

从您的问题中不清楚您希望激活"做什么.是激活 virtualenv，还是激活 conda 环境.

It's not clear from your question what you expect "activate" to do. Is it activating a virtualenv, or is it activating a conda environment.

安装 miniconda 或 anaconda 时，您可以选择将其添加到 PATH.如果你这样做，那么它可能总是出现在你的 virtualenv 激活脚本之前.您可以重命名一个或另一个，或为 virtualenv 创建一个别名，该别名使用激活脚本的绝对路径调用它.您也可以移动 Anaconda，使其附加而不是前置，但将始终使用 virtualenv activate 而不是 conda(绝对路径除外).

When you install miniconda or anaconda, you are given an option to add it to PATH. If you do so, then it probably always comes before your virtualenv activate script. You can rename one or the other, or create an alias to the virtualenv one that calls it with an absolute path to the activate script. You can also move Anaconda so that it's appended rather than prepended, but then the virtualenv activate will always be used rather than the conda one (barring absolute paths).

要附加 conda 的路径，请查看 ~/.bashrc 或 ~/.bash_profile 并更改

To append conda's path, look in ~/.bashrc or ~/.bash_profile and change

export PATH=<anaconda path>:$PATH

到

export PATH=$PATH:<anaconda path>

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