Mac使用未安装Anaconda的默认python 2.7.10

Question

我尝试卸载Anaconda，然后重新安装。

但是当我验证安装时，python环境仍在使用默认的python 2.7.10。从终端：

username ~ $ conda list
WARNING: The conda.compat module is deprecated and will be removed in a future release.
# packages in environment at /Users/username/anaconda3:
#
# Name                    Version                   Build  Channel
_ipyw_jlab_nb_ext_conf    0.1.0                    py37_0  
alabaster                 0.7.12                   py37_0  
anaconda                  2019.03                  py37_0  
anaconda-client           1.7.2                    py37_0  
anaconda-navigator        1.9.7                    py37_0  
anaconda-project          0.8.2                    py37_0  


username ~ $ python
Python 2.7.10 (default, Aug 17 2018, 19:45:58) 
[GCC 4.2.1 Compatible Apple LLVM 10.0.0 (clang-1000.0.42)] on darwin
Type "help", "copyright", "credits" or "license" for more information.

我的.bash_profile如下：

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

我猜这也导致当我使用终端启动Jupyter Notebook时，它也使用python 3，Jupyter可以执行pip list，但是当执行conda list时，它会提示： / p>

ValueError: The python kernel does not appear to be a conda environment.  Please use ``%pip install`` instead.

Anaconda导航器启动的jupyter环境可以执行pip list和conda list。