Symmetric Function coercion issue

[jbandlow]

The following was reported to me by Nicolas Thiéry and Lenny Tevlin.

R.<q,t> = ZZ[]
R = FractionField(R)
P = MacdonaldPolynomialsP(R,q,t) 
Q = HallLittlewoodQ(R,t) # or Q or P (Qp = H)
Ph=HallLittlewoodP(R,t)
SF = SymmetricFunctions(R)
SF.inject_shorthands()
Q(s.one())

Traceback (click to the left of this block for traceback)
...
AttributeError: 'int' object has no attribute 'subs'

The same error occurs with Ph(s.one()), although P(s.one()) works.

CC: @sagetrac-sage-combinat

Component: combinatorics

Keywords: symmetric functions

Author: Jason Bandlow

Reviewer: Mike Hansen

Merged: sage-4.6.alpha2

Issue created by migration from https://trac.sagemath.org/ticket/9755

[jbandlow]

Author: Jason Bandlow

[jbandlow]

comment:1

Ready for review.

[jbandlow]

comment:2

Note for combinat people: I've put this patch in the 'needs review' section of the queue.

[mwhansen]

Reviewer: Mike Hansen

[mwhansen]

comment:3

Looks good to me.

[qed777]

comment:4

Could someone make the commit string a bit more descriptive, e.g., #9755: Fix coercion problem for Hall-Littlewood polynomials?

[jbandlow]

Attachment: trac_9755_hall_littlewood_coercions-jb.patch.gz

[jbandlow]

comment:5

Replying to @qed777:

Could someone make the commit string a bit more descriptive, e.g., #9755: Fix coercion problem for Hall-Littlewood polynomials?

Oops, sorry about that. Fixed.

[qed777]

comment:7

Could you move #9755: Fix... to the first line of the commit string? Otherwise, hg log gives, e.g.,

changeset:   14948:0b3960059b6c
tag:         qtip
tag:         trac_9755_hall_littlewood_coercions-jb.patch
tag:         tip
user:        Jason Bandlow <...>
date:        Thu Aug 19 15:08:26 2010 -0400
summary:     [mq]: trac_9755_hall_littlewood_coercions-jb.patch

[jbandlow]

Attachment: trac_9755_hall_littlewood_coercions-jb.2.patch.gz

[jbandlow]

comment:8

Sorry. How's the new version (I forgot to overwrite the old one)?

[qed777]

comment:9

Replying to @jbandlow:

Sorry. How's the new version (I forgot to overwrite the old one)?

No worries. V2 looks good. Thanks!

[qed777]

Merged: sage-4.6.alpha2