python2.sagews

p2 = jupyter("python2-ubuntu")

%default_mode p2

import sys
sys.executable

'/usr/bin/python2'

import ecdsa
ecdsa

<module 'ecdsa' from '/usr/lib/python2.7/dist-packages/ecdsa/__init__.pyc'>

ecdsa.__version__

'0.13'

ecdsa.SECP256k1

<ecdsa.curves.Curve instance at 0x7f76929ae2d8>