Feature pages are design documents that developers have created while collaborating on oVirt.
Most of them are outdated, but provide historical design context.
They are not user documentation and should not be treated as such.
Documentation is available here.
Most of them are outdated, but provide historical design context.
They are not user documentation and should not be treated as such.
Documentation is available here.
Vdsm python3 compatibility
Summary
Python 3 is already 5 years old and the pioneering distributions such as Arch Linux have been running with it as default Python interpreter for quite some time. Soon the turn will come for Fedora, which is one of the community supported distributions of oVirt.
The goal of this page is to drive VDSM and it’s components to become a single codebase that supports:
- Python-2.6 (Could probably be eventually dropped when we make the next major version).
- Python-2.7
- Python-3.3+
Instigator
- Name: Antoni Segura Puimedon (APuimedo)
- Email: apuimedo aT redhat.com
To help us achieve that, this page will keep links to some useful resources and a list of things ported and to port.
Useful resources
- Making C Python modules 2.x and 3.x compatible with a bit of ifdefing.
- Book on Python3 porting (opened at the C Python modules section).
- Six: Python 2 and 3 helper library.
- Great blog post about single codebase for the versions we want to support (MUST READ).
Status (Feel free to add components/dependencies that should be ported)
| Name | Dependency | Component | Description | Completion |
|---|---|---|---|---|
| lib/vdsm | 0 | 1 | vdsm’s own library | No |
| vdsm/netconf | 0 | 1 | vdsm’s network configurator package | No |
| vdsm/storage | 0 | 1 | vdsm’s storage package | No |
| vdsm | 0 | 1 | vdsm’s main code | No |
| lib/vdsm/tool | 0 | 1 | vdsm’s utilities (mainly for command line) | No |
| vdsClient | 0 | 1 | vdsm’s command line client | No |
| python-ethtool | 1 | 0 | vdsm’s network dependency for setting/retrieving netlink and ioctl information. | Patch submitted upstream (apuimedo) |
| python-nose | 1 | 0 | vdsm’s testing dependency. | Yes |
| python-pep8 | 1 | 0 | vdsm’s formatting checks build-dependency. | Yes |
| python-pthreading | 1 | 0 | vdsm’s better threading. | Yes (not necessary in Python3) |
| python-cpopen | 1 | 0 | vdsm’s better popen. | Yes (not necessary in Python3) |
| python-inotify | 1 | 0 | - | Has to be investigated |
| python-netaddr | 1 | 0 | - | Has to be investigated |
| python-dmidecode | 1 | 0 | - | Has to be investigated |
| python-argparse | 1 | 0 | Part of Python standard library since 3.2 | |
| libvirt bindings | 1 | 0 | vdsm’s libvirt wrapper dependency. | Latest libvirt-python GIT version builds wrappers for both. |
| python-inotify | 1 | 0 | - | Yes |