bgrenet

#!/usr/bin/env python3 

import gzip
import xml.etree.ElementTree as ET
import subprocess
import argparse
import sys
import pathlib
import tempfile

bgrenet

#! /usr/bin/env python3

############################################################################
#                                                                          #
# (Extremely basic) Python script to create jupyter notebook from markdown #
# Bruno Grenet, 02.02.2017                                                 #
# License: Public Domain                                                   #
#                                                                          #
############################################################################

bgrenet

bgrenet

bgrenet

Basic problem

Classes for univariate polynomial (elements) need refactoring. Some reasons are:

1. Some classes are missing, such as for instance a generic class for polynomials over finite fields (only specialized class for some given implementation are provided).
2. We need more abstract classes. To date, many classes directly inherit from the generic class Polynomial since (for instance) the class Polynomial_generic_dense is concrete and thus fixes some data structure. Polynomials based on (say) Flint cannot use this data structure.
3. Based on the above, it seems useful for a polynomial class to support multiple inheritance. For instance, a class for sparse polynomials over ZZ should inherit both from a class for sparse polynomials, and a class for ZZ. This is impossible with Cython (which does not support multiple inheritance).
4. A consequence is also that many classes are directly in the class Polynomial with long spaghetti code made of tons of if ...: ... else: ... constructions

bgrenet

Compiling essai.spyx...
Traceback (most recent call last):
  File "/home/bruno/Software/sage/src/bin/sage-run-cython", line 8, in <module>
    s = load_cython(sys.argv.pop(1))
  File "/home/bruno/Software/sage/local/lib/python2.7/site-packages/sage/repl/load.py", line 65, in load_cython
    mod, dir = cython(name, compile_message=True, use_cache=True)
  File "/home/bruno/Software/sage/local/lib/python2.7/site-packages/sage/misc/cython.py", line 477, in cython
    raise RuntimeError("Error compiling {}:\n{}\n{}".format(filename, log, err))
RuntimeError: Error compiling essai.spyx:
running build