Binary package “python-cysignals-pari” in ubuntu artful

interrupt and signal handling for Cython -- Python - PARI/GP

 Since Cython optimizes for speed, Cython normally does not check
 for interrupts. The cysignals package provides mechanisms to handle
 interrupts (and other signals and errors) in Cython code.
 This package installs the library for Python 2; this very library
 was built against the PARI/GP library.