For python2 and Kali check this article: pyenv installation
PyEnv
Install dependencies:
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sudo apt install -y build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev xz-utils tk-dev libffi-dev liblzma-dev python3-openssl git
Installation of pyenv:
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curl https://pyenv.run | bash
If we are using ZSH then we will now add the proper lines to our .zshrc:
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echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.zshrc
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.zshrc
echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n eval "$(pyenv init --path)"\nfi' >> ~/.zshrc
To save the changes for such environment variables we can execute the following commands:
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kali@kali:~$ exec $SHELL
kali@kali:~$ pyenv
We can now install Python 2 and set it as our default Python version:
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kali@kali:~$ pyenv install 2.7.18
Downloading Python-2.7.18.tar.xz...
-> https://www.python.org/ftp/python/2.7.18/Python-2.7.18.tar.xz
Installing Python-2.7.18...
Installed Python-2.7.18 to /home/kali/.pyenv/versions/2.7.18
kali@kali:~$ pyenv global 2.7.18
kali@kali:~$
kali@kali:~$ pyenv versions
system
* 2.7.18 (set by /home/kali/.pyenv/version)
kali@kali:~$
kali@kali:~$ python
Python 2.7.18 (default, Apr 20 2020, 20:30:41)
[GCC 9.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
Venv
Specify the python version
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virtualenv -p /usr/bin/python2.7 venv
Activate the virtual environment:
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source venv/bin/activate
Exit the venv command:
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deactivate