clean lovasz_theta, isgci, independent_set

[dcoudert]

Clean files lovasz_theta.py, isgci.py and independent_set. Alignments, PEP8, etc.

Component: graph theory

Author: David Coudert

Branch/Commit: f697547

Reviewer: Travis Scrimshaw

Issue created by migration from https://trac.sagemath.org/ticket/26446

[dcoudert]

Commit: 36081b6

[dcoudert]

New commits:

9d62c0d	lovasz_theta.py and linearextensions.py
f27ec62	isgci
36081b6	idependent_set.pyx

[dcoudert]

Branch: public/26446_cleaning

[mantepse]

comment:2

note that linearextensions.py is essentially removed in #25864.

[sagetrac-git]

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

cdc9ccd

trac #26446: revert changes in linearextensions.py

[sagetrac-git]

Changed commit from 36081b6 to cdc9ccd

[sagetrac-git]

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

136f29c

trac #26446: revert changes in linearextensions.py (2)

[sagetrac-git]

Changed commit from cdc9ccd to 136f29c

[dcoudert]

comment:5

Thanks for the information. I have reverted the changes in this file to avoid conflicts.

[mantepse]

comment:6

That's very kind! Thank you!

[tscrim]

comment:8

This is one of those (annoying) long error messages with multiple sentences that needs leading capitalization and period:

-            raise ValueError("The given class id does not exist in the ISGCI database. Is the db too old ? You can update it with graph_classes.update_db().")
+            raise ValueError("the given class id does not exist in the ISGCI database. Is the db too old ? You can update it with graph_classes.update_db()")

However, this one should not have a period:

raise ValueError(str(I) + " is not a vertex of the graph.")

[tscrim]

Reviewer: Travis Scrimshaw

[sagetrac-git]

Changed commit from 136f29c to f697547

[sagetrac-git]

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

fa4a15f	trac #26446: Merged with 8.5.beta0
f697547	trac #26446: fix error messages

[dcoudert]

comment:10

Corrected.

[tscrim]

comment:11

Thanks.

[vbraun]

Changed branch from public/26446_cleaning to f697547