如何解决anaconda和virtualenv冲突的问题

Question

我一直在使用virtualenv,然后我也安装了anaconda.刚才我尝试使用anaconda的方式激活虚拟环境source activate helloworld.(事实上​​,我不记得这是否是我输入的命令).然后环境被激活了.但是当我试图运行笔记本时,据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已经激活了错误的环境.然后我关闭该选项卡,cd以hellowworld和做source bin/activate.但为时已晚了.我得到了这个作为输出,prepending /home/lcc/anaconda3/envs/bin to PATH 并且预期没有激活环境.你知道如何解决这个问题吗？谢谢!

以下是该activate文件的完整内容/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 "\n\b")&>/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

Answer 1

从你的问题中不清楚你期望"激活"做什么.它是激活virtualenv,还是激活conda环境.

当您安装miniconda或anaconda时,您可以选择将其添加到PATH.如果你这样做,那么它可能总是在你的virtualenv激活脚本之前.您可以重命名其中一个,或者为virtualenv创建一个别名,使用激活脚本的绝对路径来调用它.您也可以移动Anaconda以使其附加而不是前置,但随后将使用virtualenv activate而不是conda one(禁止绝对路径).

要附加conda的路径,请查看〜/ .bashrc或〜/ .bash_profile并进行更改

export PATH=<anaconda path>:$PATH

至

export PATH=$PATH:<anaconda path>