Just a quick how to for setting up a virtual environment in Linux. This example is using CentOS.
Install Python Virtual Environments
pip install virtualenvCreate Virtual Environment
-bash-4.2$ virtualenv .venv
created virtual environment CPython3.10.2.final.0-64 in 1131ms
creator CPython3Posix(dest=/home/centos/Scripts/2022/TACACS/.venv, clear=False, no_vcs_ignore=False, global=False)
seeder FromAppData(download=False, pip=bundle, setuptools=bundle, wheel=bundle, via=copy, app_data_dir=/home/centos/.local/share/virtualenv)
added seed packages: pip==22.2.2, setuptools==65.3.0, wheel==0.37.1
activators BashActivator,CShellActivator,FishActivator,NushellActivator,PowerShellActivator,PythonActivator
-bash-4.2$Can specify Python version for the virtual env
-bash-4.2$ virtualenv .venv --python=python3.10Activate the New Virtual Environment
-bash-4.2$ source .venv/bin/activate*
(.venv) -bash-4.2$Check the Version
(.venv) -bash-4.2$ python --version
Python 3.10.2Check Python Libraries
This will be empty to being with.
(.venv) -bash-4.2$ pip freeze
(.venv) -bash-4.2$Install a Library
(.venv) -bash-4.2$ pip install netmikoRecheck Python Libraries
(.venv) -bash-4.2$ pip freeze
bcrypt==4.0.0
cffi==1.15.1
cryptography==38.0.1
future==0.18.2
netmiko==4.1.2
ntc-templates==3.1.0
numpy==1.23.2
pandas==1.4.4
paramiko==2.11.0
pycparser==2.21
PyNaCl==1.5.0
pyserial==3.5
python-dateutil==2.8.2
pytz==2022.2.1
PyYAML==6.0
scp==0.14.4
six==1.16.0
tenacity==8.0.1
textfsm==1.1.2Exit Virtual Environment
(.venv) -bash-4.2$ deactivate
-bash-4.2$