Python Virtual Environment

Download virtualenv (skip if already installed):
```
pip3 install virtualenv
```
Create a virtual environment in the directory of the application that needs it:
```
python3 -m virtualenv .venv
```
Activate the virtual environment:
```
source .venv/bin/activate
```
Update pip3 in the virtual environment:
```
pip3 install --upgrade pip
```
Deactivate the virtual environment:
```
deactivate
```
Delete the virtual environment:
```
rm -rf .venv
```

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