conda在shell腳本中提示未初始化 | 濃得化不開

貓眼書生 2022-11-19 發(fā)布于重慶

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初始安裝時候自動初始化

每個用戶在使用conda的時候，都必須要指定一種shell類型，如bash,fish，tcsh,zsh等，當(dāng)在安裝conda的時候，其實安裝過程中已經(jīng)進(jìn)行了這樣的初始化操作。因而當(dāng)使用conda activate 命令的時候，能夠成功的執(zhí)行。假設(shè)這個時候使用的是root用戶進(jìn)行安裝的。

除了base環(huán)境外，現(xiàn)在，新建一個環(huán)境

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[root]# conda create -n flask python=2.7

#現(xiàn)在有兩個虛擬環(huán)境
[root]#  conda env list
base                  *  /usr/local/anaconda3
flask                    /usr/local/anaconda3/envs/flask

給其他用戶初始化conda

現(xiàn)在，我們進(jìn)行以下操作：

切換到用戶www
查看conda有哪些環(huán)境

進(jìn)入flask環(huán)境

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[root]# su www
[www]# conda env list
base                  *  /usr/local/anaconda3
flask                    /usr/local/anaconda3/envs/flask

[www]# conda activate flask
CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
To initialize your shell, run

    $ conda init <SHELL_NAME>

Currently supported shells are:
  - bash
  - fish
  - tcsh
  - xonsh
  - zsh
  - powershell

See 'conda init --help' for more information and options.

IMPORTANT: You may need to close and restart your shell after running 'conda init'.

從以上結(jié)果可以看出，conda是生效的，但是當(dāng)前用戶卻無法激活某個環(huán)境，那是因為目前還沒有初始化當(dāng)前用戶在使用conda時應(yīng)該使用什么shell.查看用戶目錄下的.bashrc文件，內(nèi)容如下：

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[www]# vim ~/.bashrc

#============================內(nèi)容如下=======================================
# .bashrc

# Source global definitions
if [ -f /etc/bashrc ]; then
    . /etc/bashrc
fi

# Uncomment the following line if you don't like systemctl's auto-paging feature:
# export SYSTEMD_PAGER=

# User specific aliases and functions

~
#=========================================================================

如果你的情況如上，沒有關(guān)于任何conda init相關(guān)的任何內(nèi)容，那么就表明確實沒有初始化，現(xiàn)在來初始化：

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[zhangweixi@dev001 ~]$ conda init bash
no change     /usr/local/anaconda3/condabin/conda
no change     /usr/local/anaconda3/bin/conda
no change     /usr/local/anaconda3/bin/conda-env
no change     /usr/local/anaconda3/bin/activate
no change     /usr/local/anaconda3/bin/deactivate
no change     /usr/local/anaconda3/etc/profile.d/conda.sh
no change     /usr/local/anaconda3/etc/fish/conf.d/conda.fish
no change     /usr/local/anaconda3/shell/condabin/Conda.psm1
no change     /usr/local/anaconda3/shell/condabin/conda-hook.ps1
no change     /usr/local/anaconda3/lib/python3.7/site-packages/xontrib/conda.xsh
no change     /usr/local/anaconda3/etc/profile.d/conda.csh
modified      /home/zhangweixi/.bashrc

==> For changes to take effect, close and re-open your current shell. <==

如果輸出這樣的信息，表示初始化成功，再看.bashrc文件，內(nèi)容如下：

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[zhangweixi@dev001 ~]$ vim ~/.bashrc
#=======================內(nèi)容如下===========================
# .bashrc

# Source global definitions
if [ -f /etc/bashrc ]; then
    . /etc/bashrc
fi

# Uncomment the following line if you don't like systemctl's auto-paging feature:
# export SYSTEMD_PAGER=

# User specific aliases and functions


# >>> conda initialize >>>
# !! Contents within this block are managed by 'conda init' !!
__conda_setup='$('/usr/local/anaconda3/bin/conda' 'shell.bash' 'hook' 2> /dev/null)'
if [ $? -eq 0 ]; then
    eval '$__conda_setup'
else
    if [ -f '/usr/local/anaconda3/etc/profile.d/conda.sh' ]; then
        . '/usr/local/anaconda3/etc/profile.d/conda.sh'
    else
        export PATH='/usr/local/anaconda3/bin:$PATH'
    fi  
fi
unset __conda_setup
# <<< conda initialize <<<

由此可以看出，conda在該文件中寫入了一些東西，那么這個試試來試試能激活環(huán)境嗎？

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[zhangweixi@dev001 ~]$ conda activate flask

CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
To initialize your shell, run

    $ conda init <SHELL_NAME>

Currently supported shells are:
  - bash
  - fish
  - tcsh
  - xonsh
  - zsh
  - powershell

See 'conda init --help' for more information and options.

IMPORTANT: You may need to close and restart your shell after running 'conda init'.

妹的，還是不行呀？到底啥原因？如果你切換當(dāng)前賬號到root,然后再切換回來www用戶來，再執(zhí)行conda activate flask，你會發(fā)現(xiàn)，成功的激活環(huán)境。原因在于：
當(dāng)某用戶進(jìn)入系統(tǒng)后，會自動執(zhí)行用戶目錄下的.bashrc文件，當(dāng)?shù)谝淮纬跏蓟痗onda init后，把相應(yīng)的內(nèi)容出入了.bashrc文件，可是這些代碼并沒有在環(huán)境中執(zhí)行，要想立刻生效，可以通過手動執(zhí)行這個腳本：source ~/.bashrc,這樣，再去激活環(huán)境就沒有什么問題了。

在shell腳本中激活環(huán)境

現(xiàn)在來編寫一個很簡單的shell，如下：

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[www]# vim test.sh
#==================內(nèi)如如下==============
#!/bin/bash
conda activate flask
#====================內(nèi)容結(jié)束===========
[www]# bash test.sh

CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
To initialize your shell, run

    $ conda init <SHELL_NAME>

Currently supported shells are:
  - bash
  - fish
  - tcsh
  - xonsh
  - zsh
  - powershell

See 'conda init --help' for more information and options.

IMPORTANT: You may need to close and restart your shell after running 'conda init'.

操蛋，居然不行，直接告訴如何操作把，把.bashrc文件中初始化conda的那一段代碼復(fù)制到test.sh文件的上面，變成這樣:

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#=========================test.sh內(nèi)如如下=========================
#!/bin/bash
# >>> conda initialize >>>
# !! Contents within this block are managed by 'conda init' !!
__conda_setup='$('/usr/local/anaconda3/bin/conda' 'shell.bash' 'hook' 2> /dev/null)'
if [ $? -eq 0 ]; then
    eval '$__conda_setup'
else
    if [ -f '/usr/local/anaconda3/etc/profile.d/conda.sh' ]; then
        . '/usr/local/anaconda3/etc/profile.d/conda.sh'
    else
        export PATH='/usr/local/anaconda3/bin:$PATH'
    fi  
fi
unset __conda_setup
# <<< conda initialize <<<

conda activate flask
which python               
#==============================內(nèi)容結(jié)束====================

[www]# bash test.sh 
/usr/local/anaconda3/envs/flask/bin/python