id	summary	reporter	owner	description	type	status	priority	milestone	component	resolution	keywords	cc	work_issues	upstream	reviewer	author	merged	dependencies	stopgaps
10816	Subscheme creation does not work from the notebook	novoselt	AlexGhitza	"There is the following example in the documentation in `schemes\generic\projective_space.py`:
{{{
sage: A.<x,y,z> = ProjectiveSpace(2, QQ)
sage: X = A.subscheme([x*z^2, y^2*z, x*y^2]); X
Closed subscheme of Projective Space of dimension 2 over Rational Field defined by:
  x*z^2,
  y^2*z,
  x*y^2
}}}
The file passes tests fine in sage-4.6.2.rc0, I can also do it from the command line. But if I try to do it in the notebook, I get
{{{
Traceback (most recent call last):
  File ""<stdin>"", line 1, in <module>
  File ""_sage_input_4.py"", line 10, in <module>
    exec compile(u'open(""___code___.py"",""w"").write(""# -*- coding: utf-8 -*-\\n"" + _support_.preparse_worksheet_cell(base64.b64decode(""QS48eCx5LHo+ID0gUHJvamVjdGl2ZVNwYWNlKDIsIFFRKQpYID0gQS5zdWJzY2hlbWUoW3gqel4yLCB5XjIqeiwgeCp5XjJdKTsgWA==""),globals())+""\\n""); execfile(os.path.abspath(""___code___.py""))
  File """", line 1, in <module>
    
  File ""/tmp/tmpgPYl3N/___code___.py"", line 4, in <module>
    exec compile(u'X = A.subscheme([x*z**_sage_const_2 , y**_sage_const_2 *z, x*y**_sage_const_2 ]); X
  File """", line 1, in <module>
    
  File ""/home/novoselt/sage/local/lib/python2.6/site-packages/sage/schemes/generic/projective_space.py"", line 501, in subscheme
    return algebraic_scheme.AlgebraicScheme_subscheme_projective(self, X)
AttributeError: 'module' object has no attribute 'AlgebraicScheme_subscheme_projective'
}}}
which I don't understand.

Everything is good in the notebook in sage-4.6, so it should been broken recently, perhaps by #10525, although I can't imagine how."	defect	closed	major	sage-4.6.2	algebraic geometry	fixed		vbraun jdemeyer		N/A	Jeroen Demeyer	Volker Braun	sage-4.6.2.rc1