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* Contingency mechanism: | * Contingency mechanism: Do not merge the side tag with rawhide. If the side tag has been merged and issues arise, that will justify a downgrade, then use an epoch tag to revert to 3.6 version (never needed before) <!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | ||
<!-- When is the last time the contingency mechanism can be put in place? This will typically be the beta freeze. --> | <!-- When is the last time the contingency mechanism can be put in place? This will typically be the beta freeze. --> | ||
* Contingency deadline: | * Contingency deadline: TBD <!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | ||
<!-- Does finishing this feature block the release, or can we ship with the feature in incomplete state? --> | <!-- Does finishing this feature block the release, or can we ship with the feature in incomplete state? --> | ||
* Blocks release? | * Blocks release? No <!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | ||
* Blocks product? | * Blocks product? No <!-- Applicable for Changes that blocks specific product release/Fedora.next --> | ||
== Documentation == | == Documentation == | ||
Revision as of 10:20, 14 March 2018
Python 3.7
Summary
Update the Python 3 stack in Fedora from Python 3.6 to Python 3.7.
Owner
- Name: Charalampos Stratakis
- Name: Miro Hrončok
- Name: Tomáš Orsava
- Name: Petr Viktorin
- Email: python-maint@redhat.com
- Release notes owner:
Current status
- Targeted release: Fedora 29
- Last updated: 2018-03-14
- Tracker bug: <will be assigned by the Wrangler>
Detailed Description
Python 3.7 adds numerous features and optimizations. See the upstream notes at Features for 3.7 and What's new in 3.7.
Benefit to Fedora
Fedora aims to showcase the latest in free and open source software - we should have the most recent release of Python 3. Packages in Fedora can use the new features from 3.7.
Scope
- Proposal owners:
- Retire
python37 - Update
- Mass rebuild all the packages that BR
- Mass rebuild all the packages that BR
- Reintroduce
- Retire
- Other developers: Maintainers of packages that fail to rebuild during the mass rebuild will be asked, using bugzilla, to fix or remove their packages from the distribution. If any issues appear, they should be solvable either by communicating with upstreams first and/or applying downstream patches. Also the package maintainers should have a look at: Porting to Python 3.7. And python-maint team will be available to help with fixing issues.
- Release engineering: #Releng issue number TODO A targeted rebuild for all python packages will be required, before the mass rebuild.
- List of deliverables: nope
- Policies and guidelines: nope
- Trademark approval: nope
Upgrade/compatibility impact
All the packages that depends on Python 3 must be rebuilt. User written Python 3 scripts/applications may require a small amount of porting, but mostly Python 3.6 is forward compatible with Python 3.7.
How To Test
Interested testers do not need special hardware. If you have a favorite Python 3 script, module, or application, please test it with Python 3.7 and verify that it still works as you expect. You can test it using 
python37
Once the change is in place, test if you favorite Python apps are working as they were before. File bugzillas if they don't.
User Experience
Regular distro users shouldn't notice any change in system behavior other than the Python 3 interpreter will be in version 3.7.
Dependencies
~2300 packages depends on
Contingency Plan
- Contingency mechanism: Do not merge the side tag with rawhide. If the side tag has been merged and issues arise, that will justify a downgrade, then use an epoch tag to revert to 3.6 version (never needed before)
- Contingency deadline: TBD
- Blocks release? No
- Blocks product? No
Documentation
N/A (not a System Wide Change)