How to use qflll() in the PARI library?

Question

I wanted to use the function qflll from the PARI library in python, so I downloaded pari-python-cygwin-0.1.zip, however when I attempted to use qflll in python, i.e.

qflll([[1,0,0],[0,1,0],[0,0,1]])

I got this error message

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: Too few parameters provided: 1

So I how do I invoke the function qflll in python properly without any error?

Answer 1

As you can see in these docs, the qflll function takes a PARI matrix as input. Therefore, you have to do something like:

sage: M = Matrix([[1,0,0],[0,1,0],[0,0,1]])
sage: p = pari(M)
sage: p.qflll()
[1, 0, 0; 0, 1, 0; 0, 0, 1]

Or, if you prefer, one sentence:

sage: pari(Matrix([[1,0,0],[0,1,0],[0,0,1]])).qflll()
[1, 0, 0; 0, 1, 0; 0, 0, 1]