# Installation

`checkdmarc` requires Python 3.

On Debian or Ubuntu systems, run:

```text
sudo apt-get install python3-pip
```

Python 3 installers for Windows and macOS can be found at <https://www.python.org/downloads/>

To install or upgrade to the latest stable release of `checkdmarc` on macOS or Linux, run

```text
pip3 install -U checkdmarc
```

Or, install the latest development release directly from GitHub:

```text
pip3 install -U git+https://github.com/domainaware/checkdmarc.git
```

```{note}
On Windows, `pip3` is `pip`, even with Python 3.
```