Python 3 preparation: Rename sys.maxint to sys.maxsize

[wluebbe]

Only the modern name is accepted by Python 3.

Changes according to lib2to3/fixes/renames.py:

sys.maxint -> sys.maxsize

This ticket is tracked as a dependency of meta-ticket ticket:15980.

Component: distribution

Author: Frédéric Chapoton

Branch/Commit: 1f0a49b

Reviewer: Wilfried Luebbe

Issue created by migration from https://trac.sagemath.org/ticket/15991

[fchapoton]

Branch: u/chapoton/15991

[fchapoton]

Author: Frédéric Chapoton

[fchapoton]

New commits:

1f0a49b

trac #15991 towards p3 maxint --> maxsize

[fchapoton]

Commit: 1f0a49b

[wluebbe]

comment:2

Some additional information form WhatsNew Python 3

//The sys.maxint constant was removed, since there is no longer a limit to the value of integers. However, sys.maxsize can be used as an integer larger than any practical list or string index. It conforms to the implementation’s “natural” integer size and is typically the same as sys.maxint in previous releases on the same platform (assuming the same build options).//

and from the Python 3 docmentation

sys.maxsize
An integer giving the maximum value a variable of type Py_ssize_t can take. It’s usually 2!**31 - 1 on a 32-bit platform and 2!**63 - 1 on a 64-bit platform.

[wluebbe]

comment:3

The patch looks good.

I did

git merge u/chapoton/15991 u/wluebbe/ticket/15986 u/wluebbe/ticket/15987

on top of u/wluebbe/ticket/15992 (which is rebased on 6.2.beta5):

./sage -t -p --all --long --logfile=logs/ptestlong-alle4.log
...
All tests passed!

[vbraun]

comment:4

Reviewer name

[fchapoton]

Reviewer: Wilfried Luebbe

[vbraun]

Changed branch from u/chapoton/15991 to 1f0a49b