### SageTeX: sagecommandline problem

As a simple example of the problem I have encountered

```
\begin{sagecommandline}
sage: M=matrix.identity(6)
sage: M
sage: v=vector([k for k in [0..5]])
sage: v
\end{sagecommandline}
```

the output looks fine except that the printed matrix $M$ overlaps with the definition of the vector $v.$