Upgrade to pynac-0.6.1

[rwst]

Brand new pynac has:

• Stieltjes constant function (implement symbolic Stieltjes constants #19834)
• zeta expansion at 1 using stieltjes() (expansion of zeta using stieltjes-constants #19836, thanks Benjamin Hackl)
• fix hashing of infinities (doctest fix for infinities break the hash contract #19928)
• fix exp and atan of oo (doctest fix for: substitute exp(-x) with x infinity fails #19918)
• fix pseries print order
• speedups and fixes from GiNaC

Tarball: https://github.com/pynac/pynac/releases/download/pynac-0.6.1/pynac-0.6.1.tar.bz2

CC: @behackl

Component: packages: standard

Author: Ralf Stephan

Branch/Commit: 8a9b6ac

Reviewer: Benjamin Hackl

Issue created by migration from https://trac.sagemath.org/ticket/19948

[rwst]

Branch: u/rws/upgrade_to_pynac_0_6_1

[rwst]

Author: Ralf Stephan

[rwst]

Commit: b76a8ad

[rwst]

New commits:

5c88141	19448: update Pynac pkg data
b76a8ad	19948: add stieltjes() interface; fix doctest

[behackl]

comment:4

Interface and doctest changes LGTM; currently running ptestlong.

[jdemeyer]

comment:5

Should this be ValueError?

raise AttributeError("Stieltjes constant of negative index")

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

4857402

19949: fix type of error raised by stieltjes()

[sagetrac-git]

Changed commit from b76a8ad to 4857402

[rwst]

comment:7

You're right.

[behackl]

comment:8

Sorry, missed the error type. In any case:

ptestlong passes on two separate machines. Would be positive_review from my side.

[jdemeyer]

Reviewer: Benjamin Hackl

[jdemeyer]

Changed branch from u/rws/upgrade_to_pynac_0_6_1 to u/jdemeyer/upgrade_to_pynac_0_6_1

[jdemeyer]

comment:11

The ticket number in 2 of the 3 commit messages was wrong. I squashed the commits and fixed the commit message.

---

New commits:

8a9b6ac

Trac #19948: Upgrade to pynac-0.6.1

[jdemeyer]

Changed commit from 4857402 to 8a9b6ac

[vbraun]

Changed branch from u/jdemeyer/upgrade_to_pynac_0_6_1 to 8a9b6ac