#4762: [with patch, needs work] Odd error message for congruence subgroups
---------------------------+------------------------------------------------
Reporter: ljpk | Owner: craigcitro
Type: defect | Status: new
Priority: minor | Milestone: sage-3.4
Component: modular forms | Resolution:
Keywords: |
---------------------------+------------------------------------------------
Changes (by craigcitro):
* summary: [with patch, needs review] Odd error message for congruence
subgroups => [with patch, needs work] Odd error
message for congruence subgroups
Comment:
Patch looks good, but there are still some troubles in the code. Here's an
example:
{{{
sage: G = Gamma0(5)
sage: G.0 in SL2Z
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (131, 0))
---------------------------------------------------------------------------
AttributeError Traceback (most recent call
last)
/Users/craigcitro/.sage/temp/sharma.local/18290/_Users_craigcitro__sage_init_sage_0.py
in <module>()
----> 1
2
3
4
5
/sage/local/lib/python2.5/site-packages/sage/groups/group.so in
sage.groups.group.Group.__contains__ (sage/groups/group.c:1034)()
46
47
---> 48
49
50
/sage/local/lib/python2.5/site-packages/sage/modular/congroup.pyc in
__call__(self, x, check)
1665 if isinstance(x, CongruenceSubgroupElement) and x.parent()
== self:
1666 return x
-> 1667 x = CongruenceSubgroupElement(self, x, check=check)
1668 if not check:
1669 return x
/sage/local/lib/python2.5/site-packages/sage/modular/congroup_element.pyc
in __init__(self, parent, x, check)
49 if x.determinant() != 1:
50 raise TypeError, "matrix must have determinant 1"
---> 51 x.set_immutable()
52
53 MultiplicativeGroupElement.__init__(self, parent)
/sage/local/lib/python2.5/site-packages/sage/matrix/matrix0.so in
sage.matrix.matrix0.Matrix.set_immutable (sage/matrix/matrix0.c:3464)()
407
408
--> 409
410
411
AttributeError: 'NoneType' object has no attribute 'set_immutable'
sage:
}}}
I'm
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4762#comment:3>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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