# Obtaining a RealNumber in Python

I have a python module imported by a SageMath notbook and in this module, I import and use Sage functionality via `from sage.all import *`

.

Most functions work fine, however when I try to obtain a `RealNumber`

such as in the following code:

```
from sage.rings.real_mpfr import RealNumber
# ...
test = RealNumber(1.2)
```

I get this error:

```
TypeError: Cannot convert float to sage.rings.real_mpfr.RealField_class
```

I've tried using strings as well and that didn't work either.

~~Note that to use ~~ <- This was an incorrect assumption on my part. After @slelievre's answer, I looked if `RealNumber`

I need to import it explicitly (it's not included in `sage.all`

).`create_RealNumber`

was imported by `sage.all`

and it indeed is. Ultimately, to get `RealNumber`

to work, only the `sage.all`

import is needed.

### Question:

How can I use `RealNumber`

in my Python module?