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Python

12-05-2024

Virtual environments

Install necessary packages:
```
  apt install python3-venv
```
Create virtual environment in current directory:
```
  python3 -m venv ./<venv>
```
Activate virtual environment:
```
  . <venv>/bin/activate
```
Deactivate virtual environment:
```
  deactivate
```

Package commands

List installed packages:
```
  pip3 list
```
List locally installed packages:
```
  pip3 list --local
```
List locally installed packages with pending upgrades:
```
  pip3 list --local --outdated
```

Repository commands

Install package ‘pkg’:
```
  pip3 install <pkg>
```
Install package ‘pkg’ in user’s site-packages:
```
  pip3 install --user <pkg>
```

Install packages using a requirements file:

  pip3 install --requirement requirements.txt

Upgrade package ‘pkg’:
```
  pip3 install --upgrade <pkg>
```
Upgrade package ‘pkg’ in user’s site-packages:
```
  pip3 install --user --upgrade <pkg>
```
Uninstall package ‘pkg’:
```
  pip3 uninstall <pkg>
```

Search

Search packages whose name or description contains ‘string’:
```
 pip3 search <string>
```

Information

Show information about package ‘pkg’:
```
  pip3 show <pkg>
```

Links