Add python-ifaddr

[lalten]

Please add python-ifaddr to the rosdep database.
Needed in ros2/ros2cli#875

Package name:

python-ifaddr

Package Upstream Source:

https://github.com/pydron/ifaddr

Purpose of using this:

python-netifaces (https://github.com/al45tair/netifaces) is unmaintained: al45tair/netifaces#78. ifaddr is an alternative.

Distro packaging links:

Links to Distribution Packages

• Debian: https://packages.debian.org/bookworm/python3-ifaddr
• Ubuntu: https://packages.ubuntu.com/source/jammy/python-ifaddr
• Fedora: https://packages.fedoraproject.org/pkgs/python-ifaddr/python3-ifaddr/index.html
• Arch: https://archlinux.org/packages/extra/any/python-ifaddr/
• Alpine: https://pkgs.alpinelinux.org/package/v3.18/community/x86_64/py3-ifaddr

[mjcarroll]

@cottsay do you know why it would be suggesting python2-ifaddr for opensuse when the package URL itself is python-ifaddr?

[cottsay]

The python2-ifaddr RPM package provides a virtual package called python-ifaddr:

$ rpm --qf '[%{PROVIDES}\n]' -qp https://download.opensuse.org/distribution/leap/15.2/repo/oss/noarch/python2-ifaddr-0.1.6-lp152.2.1.noarch.rpm
python-ifaddr
python2-ifaddr

In Fedora, it was normal for Python packages to provide the "unversioned" python package name to ease the transition away from the unversioned package names. Evidently openSUSE did the same thing.

Two notes here:

1. We should update our openSUSE Leap version target to 15.5, where the Python 2 packages are no longer available so warnings like this won't show up.
2. Why is the key python-ifaddr and not python3-ifaddr? Shouldn't new keys follow the Ubuntu package name?

[tfoote]

Suggested change

	python-ifaddr:
	python3-ifaddr:

For new python keys they should be python3-* to match the key values which all appear to be python 3.

Note that this will require it to be re-alphabetized too. And should avoid the opensuse python2 question above too.

[cottsay]

The python2-ifaddr RPM package provides a virtual package called python-ifaddr:

$ rpm --qf '[%{PROVIDES}\n]' -qp https://download.opensuse.org/distribution/leap/15.2/repo/oss/noarch/python2-ifaddr-0.1.6-lp152.2.1.noarch.rpm
python-ifaddr
python2-ifaddr

In Fedora, it was normal for Python packages to provide the "unversioned" python package name to ease the transition away from the unversioned package names. Evidently openSUSE did the same thing.

Two notes here:

1. We should update our openSUSE Leap version target to 15.5, where the Python 2 packages are no longer available so warnings like this won't show up.
2. Why is the key python-ifaddr and not python3-ifaddr? Shouldn't new keys follow the Ubuntu package name?

[cottsay]

This should be simplified:

Suggested change

	ubuntu:
	'*': [python3-ifaddr]
	ubuntu: [python3-ifaddr]

[tfoote]

Suggested change

	python-ifaddr:
	python3-ifaddr:

For new python keys they should be python3-* to match the key values which all appear to be python 3.

Note that this will require it to be re-alphabetized too. And should avoid the opensuse python2 question above too.

[mjcarroll]

@lalten friendly ping.

[lalten]

Thanks for the ping. I originally needed ifaddr for ros2/ros2cli#875, but that PR ended up using python3-psutils instead, which turns out contains all features of ifaddr already. Thanks for all the reviews and insightful python/python3 comments. I'm going to close this as it's not needed anymore now.