2. Installing semver

2.1. Release Policy

As semver uses Semantic Versioning, breaking changes are only introduced in major releases (incremented X in “X.Y.Z”).

For users who want to stay with major 2 releases only, add the following version restriction:

semver>=2,<3

This line avoids surprises. You will get any updates within the major 2 release like 2.11.0 or above. However, you will never get an update for semver 3.0.0.

Keep in mind, as this line avoids any major version updates, you also will never get new exciting features or bug fixes.

Same applies for semver v3, if you want to get all updates for the semver v3 development line, but not a major update to semver v4:

semver>=3,<4

You can add this line in your file setup.py, requirements.txt, pyproject.toml, or any other file that lists your dependencies.

2.2. Pip

pip3 install semver

If you want to install this specific version (for example, 3.0.0), use the command pip with an URL and its version:

pip3 install git+https://github.com/python-semver/python-semver.git@3.0.0

2.3. Linux Distributions

Note

Some Linux distributions can have outdated packages. These outdated packages does not contain the latest bug fixes or new features. If you need a newer package, you have these option:

  • Ask the maintainer to update the package.

  • Update the package for your favorite distribution and submit it.

  • Use a Python virtual environment and pip install.

2.3.1. Arch Linux

  1. Enable the community repositories first:

    [community]
Include = /etc/pacman.d/mirrorlist

  2. Install the package:

    $ pacman -Sy python-semver

2.3.2. Debian

  1. Update the package index:

    $  sudo apt-get update

  2. Install the package:

    $ sudo apt-get install python3-semver

2.3.3. Fedora

$ dnf install python3-semver

2.3.4. FreeBSD

$ pkg install py36-semver

2.3.5. openSUSE

  1. Enable the devel:languages:python repository of the Open Build Service:

    $ sudo zypper addrepo --refresh obs://devel:languages:python devel_languages_python

  2. Install the package:

    $ sudo zypper install --repo devel_languages_python python3-semver

2.3.6. Ubuntu

  1. Update the package index:

    $ sudo apt-get update

  2. Install the package:

    $ sudo apt-get install python3-semver