tab completion broken for many parent objects

[williamstein]

sage: P.<x,y> = QQ[]
sage: dir(P)
BOOM!

This is caused by Nick Thiery's patch from trac #7921 which very badly defines a __dir__ method for parents:

changeset:   13746:6ad207aca83f
user:        Nicolas M. Thiery <nthiery@users.sf.net>
date:        Fri Jan 22 22:53:29 2010 +0100          
summary:     #7921: Categories for extension types via __getattr___

The problem was reported at this sage-devel thread.

CC: @novoselt

Component: misc

Author: Nicolas M. Thiéry

Reviewer: Andrey Novoseltsev

Merged: sage-4.3.3.alpha1

Issue created by migration from https://trac.sagemath.org/ticket/8223

[nthiery]

Author: Nicolas M. Thiéry

[nthiery]

comment:3

Attachment: trac_8223-fix_dir-nt.patch.gz

The attached patch should fix the issue. That being said, I would love to see a more robust implementation of sage.structure.parent.dir_with_other_class.

[haraldschilly]

comment:5

on #sage-devel

00:39 < logix> fwiw, for me the patch in #8223 makes k.[TAB] work again (where e.g. k.<a>=GF(8) )

[novoselt]

comment:8

Looks good to me.

[novoselt]

Reviewer: Andrey Novoseltsev

[sagetrac-mvngu]

Merged: sage-4.3.3.alpha1

[sagetrac-mvngu]

comment:9

Merged trac_8223-fix_dir-nt.patch with a sensible commit message containing the ticket number.