ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Tue, 30 Mar 2021 07:49:35 +0200Obtaining a RealNumber in Pythonhttps://ask.sagemath.org/question/56426/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.
<s>Note that to use `RealNumber` I need to import it explicitly (it's not included in `sage.all `).</s> <- This was an incorrect assumption on my part. After @slelievre's answer, I looked if `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?Dan-KTue, 30 Mar 2021 07:49:35 +0200https://ask.sagemath.org/question/56426/