Dev mini syncup 

14 April 2020 

Participants: Paul, Pradyun, Tzu-Ping


- pip 20.1 +  https://hackmd.io/nSueIf7PQViDeaEPQIuprQ
	- What is still missing in the resolver (vs old resolver)
		TP: If the test suite covers everything, then we're missing
			* user installs (may be solved by https://github.com/pypa/pip/pull/7997)
			* upgrade strategy (need to emit a warning/error for this)
			* constraints (has error message)
			* wheel cache
			* error messages (see below)
			* circular dependency (has error message)
		* Also some things that are failing but I can’t figure out why
		   * Pradyun: there's a lot of stuff that the resolver doesn't actually test.
		   * [discussed REQUESTED implementation https://github.com/pypa/pip/pull/8026/]
	- What has been implemented
		* nothing specific to be mentioned in the release notes
		* “If something works, yay, tell us so that we can party, otherwise still tell us so we can fix it”
	- What to merge
		* https://github.com/pypa/pip/pull/8014
		* https://github.com/pypa/pip/pull/8033
		* https://github.com/pypa/pip/labels/C%3A%20new%20resolver -- there's a new label!
	- Where do users report issues https://pyfound.blogspot.com/2020/03/new-pip-resolver-to-roll-out-this-year.html
		* zazo? rename & repurpose
		* move issues -- TP pointed out that we can only use this within the same namespace / org / user repos.
		* Pradyun: don't want a temporary repo on the PyPA org.
		* [TODO 1]
	- Release notes + documentation?
		- [TODO 2]
- optimising network requests
	* Resolvelib will take an iterator in "highest priority first" order
	* Transition plan, take a list for now with a deprecation warning (and reverse?)
	* TP will look at the code and decide what's best :-)
- error messages https://github.com/pypa/pip/pull/8033
	* Pradyun: seems like only 1 failure https://travis-ci.org/github/pypa/pip/jobs/674789470#L403
	* Paul: will look at that after call.

Pradyun: normalization. :(
*    will have to deal w/ in revendoring

https://docs.python.org/3/library/exceptions.html#PermissionError

 * [TODO 1]: Remind Sumana to get us an email address for resolver-related reports as we promised in the PSF blog
 * [TODO 2]: Discuss w/ Sumana about communication around pip 20.1 + where does she think the notes from Paul should go

Check the above two TODO points with Sumana. Maybe syncup tomorrow (Wed) if there’s update on those. Or... Zulip! :P