# LMFDB Code for p-adic extensions gives NotImplementedError

I downloaded the Sage code from this page, which is supposed to give me all quartic extensions of the 2-adic integers. When I try to run the code, it gives me the error:

```
NotImplementedError: Extensions by general polynomials not yet supported. Please use an unramified or Eisenstein polynomial.
```

A mwe for the error is given by the following code:

```
pAdicExtension(Qp(2, 100), PolynomialRing(Qp(2, 100),'x')([4, 0, 8, 0, 1]),var_name='x')
```

I am using SageMath 9.6, which I believe is the latest version, so it seems strange that code from the LMFDB would be giving me this error, since presumably they tested it before putting it up. Can anyone advise me on getting around this or fixing it?