The problem is that bliss and Sage do not agree on which one
is canonical
sage: G1 = Graph("Cr")
sage: G2 = Graph("C]")
sage: G1.canonical_label(algorithm='bliss') == G1
True
sage: G1.canonical_label(algorithm='sage') == G2
True
I thought that the definition of the canonical labels was the
order on vertices that minimize the adjacency matrix in
lexicographic order...
Vincent
Le 02/01/2019 à 08:32, Vincent Delecroix a écrit :
I opened #26994
https://trac.sagemath.org/ticket/26994
Le 02/01/2019 à 07:25, François Bissey a écrit :
We already have seen it in 8.5.beta but no one has opened a ticket yet
for it
I think. Nor does anyone knows the real trigger for it.
Because I first spotted it in sage-on-gentoo I thought that it was a
sqlite
version mismatch, but pure sage people started to report it…
François
On 2/01/2019, at 11:26, Vincent Delecroix <20100.delecr...@gmail.com>
wrote:
Hello,
On 8.6.beta1 I have reproducible doctest failures in
databases/sql_db.py. The origin might be
Trac #26702: Py3: Fix database/sql_db module for python3
Vincent
sage -t --long src/sage/databases/sql_db.py
**********************************************************************
File "src/sage/databases/sql_db.py", line 956, in
sage.databases.sql_db.SQLDatabase.__init__
Failed example:
D.show('simon')
Expected:
graph6 vertices edges
------------------------------------------------------------
? 0 0
@ 1 0
A? 2 0
A_ 2 1
B? 3 0
BG 3 1
BW 3 2
Bw 3 3
C? 4 0
C@ 4 1
CB 4 2
CF 4 3
CJ 4 3
CK 4 2
CL 4 3
CN 4 4
C] 4 4
C^ 4 5
C~ 4 6
Got:
graph6 vertices edges
------------------------------------------------------------
? 0 0
@ 1 0
A? 2 0
A_ 2 1
B? 3 0
BG 3 1
BW 3 2
Bw 3 3
C? 4 0
C@ 4 1
CB 4 2
CF 4 3
CJ 4 3
C` 4 2
CR 4 3
CN 4 4
Cr 4 4
C^ 4 5
C~ 4 6
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