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As of version 4.1.2.alpha2, the Sage tutorial has a section containing
a guided tour of graph theory in Sage. In principle, this is a good
idea, but the execution is severely flawed: about 2/3 of the tour
focuses on the methods "g.max_matching()", "g.edge_coloring()", and
"g.vertex_coloring()". There are no such methods in Sage. (The
relevant doctests were never executed because of the issue discussed
at trac ticket #6572.) Since the tutorial ought to be one of the
first pieces of documentation people use, this situation is
disastrous.
I suggest that before we release 4.1.2, we delete this part of the
tutorial until the file is fixed. (Alternatively, we could delete 2/3
of the file, but that might make it a bit short on substance.)
This was from #6774. I gave it a positive review, pending the merging of the tickets with the necessary functionality, since I did not have those tickets merged in my tree yet. Minh merged it after the doctests passed (I guess assuming that the functions had been merged then), so it does look like it was a problem of the doctests not actually being run (manually or otherwise!).
Thanks for catching this; sorry for the bother!
We should probably reopen #6774 now, for when the functionality is merged into Sage.
We can reopen #6774 or open a new ticket -- I'm not sure which is better. In any case, we should make sure that the most recent version of the graph theory tour is included (combining at least #6774 and #6952 -- are there any other relevant tickets?).
From sage-devel:
See #6572 for some related issues.
Component: documentation
Author: John Palmieri
Reviewer: Jason Grout
Merged: sage-4.1.2.rc1
Issue created by migration from https://trac.sagemath.org/ticket/7149
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