Issues with new install of G6K

[nguyen-tuonghuy]

Hello,

I was usually using the install procedure described here : https://martinralbrecht.wordpress.com/2020/08/23/conda-jupyter-and-emacs/ using conda to install g6k.

Since, the rebuild.sh file has been removed, I went back to using the procedures described in the readme : using the bootstrap.sh or using an environment with already fplll/fpylll (which is analoguous to the conda procedure mentionned above). However, none of the procedures worked.

I received the following error (using the second method with fpyll already installed) :

$ python3 setup.py install

Compiling g6k/siever.pyx because it changed. Compiling g6k/siever_params.pyx because it changed. [1/2] Cythonizing g6k/siever.pyx warning: /home/tuong-huy/miniconda3/envs/env-g6k/lib/python3.11/site-packages/cysignals/signals.pxd:57:56: The keyword 'nogil' should appear at the end of the function signature line. Placing it before 'except' or 'noexcept' will be disallowed in a future version of Cython.

Error compiling Cython file:

... if lens[i] > 0.: L.append((i, lens[i], vecs[i])) return L

def insert_best_lift(self, scoring=(lambda index, nlen, olen, aux: True), aux=None):
                                    ^

---

g6k/siever.pyx:1664:40: Compiler crash in ExpressionWriter

Compiler crash traceback from this point on: File "Cython/Compiler/Visitor.py", line 182, in Cython.Compiler.Visitor.TreeVisitor._visit File "/home/tuong-huy/miniconda3/envs/env-g6k/lib/python3.11/site-packages/Cython/CodeWriter.py", line 512, in visit_Node raise AssertionError("Node not handled by serializer: %r" % node) AssertionError: Node not handled by serializer: <Cython.Compiler.ExprNodes.LambdaNode object at 0x7f010a890550> Traceback (most recent call last): File "/home/tuong-huy/test_g6k/g6k/setup.py", line 109, in ext_modules=cythonize( ^^^^^^^^^^ File "/home/tuong-huy/miniconda3/envs/env-g6k/lib/python3.11/site-packages/Cython/Build/Dependencies.py", line 1134, in cythonize cythonize_one(*args) File "/home/tuong-huy/miniconda3/envs/env-g6k/lib/python3.11/site-packages/Cython/Build/Dependencies.py", line 1301, in cythonize_one raise CompileError(None, pyx_file) Cython.Compiler.Errors.CompileError: g6k/siever.pyx

I went to check on previous issues regarding cysignals etc, but so far no luck. I'm trying to install g6k on Ubuntu 22.04.

[malb]

Yes, something broke recently (see also #114) but I hadn't had the time yet to debug. Help welcome :)

[zlhlovelattice]

Is there a solution? I also encountered the same problem when installing.

[malb]

I didn't manage to reproduce this particular problem (so far)

[malb]

Closing this as a duplicate.