Just a quick how to for setting up a virtual environment in Linux. This example is using CentOS.
Install Python Virtual Environments
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pip install virtualenv |
Create Virtual Environment
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-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
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-bash-4.2$ virtualenv .venv --python=python3.10 |
Activate the New Virtual Environment
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-bash-4.2$ source .venv/bin/activate* (.venv) -bash-4.2$ |
Check the Version
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(.venv) -bash-4.2$ python --version Python 3.10.2 |
Check Python Libraries
This will be empty to being with.
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(.venv) -bash-4.2$ pip freeze (.venv) -bash-4.2$ |
Install a Library
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(.venv) -bash-4.2$ pip install netmiko |
Recheck Python Libraries
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(.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==1.1.2 |
Exit Virtual Environment
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(.venv) -bash-4.2$ deactivate -bash-4.2$ |