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Here is a partial answer : instead of putting your basis" in a list, you should put it in a matrix, so that you could benefit from the methods available there.

sage: M = matrix(basis)
sage: M
[1 2 3]
[1 5 6]
sage: M.parent()
Full MatrixSpace of 2 by 3 dense matrices over Finite Field of size 29
sage: M.gram_schmidt()
AttributeError: 'sage.rings.finite_rings.integer_mod.IntegerMod_int' object has no attribute 'conjugate'

Unfortunately, to compute the Gram-Schmidt orthogonalization of M, Sage needs to find the conjugate of elements GF(29), which seems not defined.

Here is a partial answer : instead of putting your basis" in a list, you should put it in a matrix, so that you could benefit from the methods available there.

sage: M = matrix(basis)
sage: M
[1 2 3]
[1 5 6]
sage: M.parent()
Full MatrixSpace of 2 by 3 dense matrices over Finite Field of size 29
sage: M.gram_schmidt()
AttributeError: 'sage.rings.finite_rings.integer_mod.IntegerMod_int' object has no attribute 'conjugate'

Unfortunately, to compute the Gram-Schmidt orthogonalization of M, Sage needs to find the conjugate of elements GF(29), which seems not defined.defined (if you replace GF(29) with ZZ, everythin seems fine).

Here is a partial answer : instead of putting your basis" "basis" in a list, you should put it in a matrix, so that you could benefit from the methods available there.

sage: M = matrix(basis)
sage: M
[1 2 3]
[1 5 6]
sage: M.parent()
Full MatrixSpace of 2 by 3 dense matrices over Finite Field of size 29
sage: M.gram_schmidt()
AttributeError: 'sage.rings.finite_rings.integer_mod.IntegerMod_int' object has no attribute 'conjugate'

Unfortunately, to compute the Gram-Schmidt orthogonalization of M, Sage needs to find the conjugate of elements GF(29), which seems not defined (if you replace GF(29) with ZZ, everythin seems fine).