'x' should be defined when using 'sage -c'

[jhpalmieri]

Sage currently doesn't defined the variable 'x' when using sage -c:

$ sage -c "print x"
Traceback (most recent call last):
  File "/Users/palmieri/Desktop/Sage_stuff/sage_builds/sage-5.4.rc1/local/bin/sage-eval", line 13, in <module>
    eval(compile(s,'<cmdline>','exec'))
  File "<cmdline>", line 1, in <module>
NameError: name 'x' is not defined

We should fix this.

Apply attachment: trac_13598-x.patch to the scripts repository.

CC: @kcrisman

Component: scripts

Author: John Palmieri

Reviewer: Punarbasu Purkayastha

Merged: sage-5.4.1.rc0

Issue created by migration from https://trac.sagemath.org/ticket/13598

[jhpalmieri]

Attachment: trac_13598-x.patch.gz

scripts repo

[jhpalmieri]

comment:2

The line

from sage.calculus.predefined import x

is present in both all_cmdline.py and all_notebook.py, so it is executed during any normal Sage session.

[ppurka]

Reviewer: Punarbasu Purkayastha

[ppurka]

comment:3

Looks good to me. Maybe this was just an oversight earlier?

[jdemeyer]

Merged: sage-5.5.beta0

[jdemeyer]

Changed merged from sage-5.5.beta0 to sage-5.4.1.rc0