The two possible ways are v = Sequence([1,2,3],immutable=True)
or v = Sequence([1,2,3]) v.set_immutable() You should never mess with "underscore" attributes if you haven't actually written the code as these implementation details can change without warning. The documentation is displayed by Sequence? and Sequence.is_immutable? -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
