Pip拒绝在Anaconda环境中安装

Question

我试图在用Anaconda创建的新创建的虚拟环境中安装一些软件包。

创建新的环境：

kali@kali: conda create --name py2 python=2.7

现在在提示的开头添加了激活环境（py2）

kali@kali: conda activate py2

确保环境中已安装pip：

(py2) kali@kali: conda install pip

我检查了环境中是否成功安装了安装程序

(py2) kali@kali: cd ~/anaconda3/envs/py2/bin

我还在pip安装上执行了“ which”命令：

(py2) kali@kali: which ~/anaconda3/envs/py2/bin/pip 
Result:
/home/kali/anaconda3/envs/py2/bin/pip

直接在文件夹内调用pip安装时：

(py2) kali@kali: ~/anaconda3/envs/py2/bin/pip --version  
Result:
pip 20.2.4 from /home/kali/anaconda3/envs/py2/lib/python2.7/site-packages/pip (python 2.7)  

但是，当我尝试安装模块时，它始终指向环境外部：

(py2) kali@kali: /home/kali/anaconda3/envs/py2/bin/pip install pycrypto
Requirement already satisfied: pycrypto in /home/kali/.local/lib/python2.7/site-packages (2.6.1)