Add 1 implementation

[juancarlospaco]

• Add Nim implementation.

Steps to try it

Assuming Linux, assuming you are in the repo root folder.

• curl https://nim-lang.org/choosenim/init.sh -sSf | sh
• Add Nim to PATH, using ~/.bashrc, instructions provided by install process.
• nimble install nimpy
• nim c -d:danger --out:list_nim.so list_nim.nim
• python main.py

[00sapo]

Hey thanks for this, I'm really interested in nim.

However, I get the following errors:

free(): invalid pointer

signal (6): Aborted
in expression starting at none:1
gsignal at /usr/lib/libc.so.6 (unknown line)
abort at /usr/lib/libc.so.6 (unknown line)
__libc_message at /usr/lib/libc.so.6 (unknown line)
malloc_printerr at /usr/lib/libc.so.6 (unknown line)
_int_free at /usr/lib/libc.so.6 (unknown line)
cfree at /usr/lib/libc.so.6 (unknown line)
PyMem_RawFree at /tmp/python-build.20210104143045.2522119/Python-3.9.0/Objects/obmalloc.c:595 [inlined]
_PyObject_Free at /tmp/python-build.20210104143045.2522119/Python-3.9.0/Objects/obmalloc.c:1922 [inlined]
_PyObject_Free at /tmp/python-build.20210104143045.2522119/Python-3.9.0/Objects/obmalloc.c:1913
unknown function (ip: 0x7f79e578509e)
unknown function (ip: 0x7f79e582a33e)
_PyEval_EvalFrameDefault at /usr/lib/libpython3.9.so.1.0 (unknown line)
unknown function (ip: 0x7f79e58179ac)
_PyFunction_Vectorcall at /usr/lib/libpython3.9.so.1.0 (unknown line)
_PyEval_EvalFrameDefault at /usr/lib/libpython3.9.so.1.0 (unknown line)
_PyFunction_Vectorcall at /usr/lib/libpython3.9.so.1.0 (unknown line)
_PyEval_EvalFrameDefault at /usr/lib/libpython3.9.so.1.0 (unknown line)
_PyFunction_Vectorcall at /usr/lib/libpython3.9.so.1.0 (unknown line)
_PyEval_EvalFrameDefault at /usr/lib/libpython3.9.so.1.0 (unknown line)
_PyFunction_Vectorcall at /usr/lib/libpython3.9.so.1.0 (unknown line)
_PyEval_EvalFrameDefault at /usr/lib/libpython3.9.so.1.0 (unknown line)
_PyFunction_Vectorcall at /usr/lib/libpython3.9.so.1.0 (unknown line)
_PyEval_EvalFrameDefault at /usr/lib/libpython3.9.so.1.0 (unknown line)
_PyFunction_Vectorcall at /usr/lib/libpython3.9.so.1.0 (unknown line)

[...]

__libc_start_main at /usr/lib/libc.so.6 (unknown line)
_start at /home/sapo/Develop/cython_test_nim/.venv/bin/python (unknown line)
Allocations: 625720 (Pool: 625441; Big: 279); GC: 1
fish: Job 1, 'poetry run python main.py' terminated by signal SIGABRT (Abort)

[juancarlospaco]

Whats the command that gives that output ?.

I am not using poetry, because is not needed, does not support it, just run it manually with the commands I posted.
(Nim also runs interpreted so I use it for deploys and scripting too).
:)

[00sapo]

The command which fails is poetry run python main.py

Sorry, I don't think poetry is not supported, but if it's so, it is hard to see Nim in a real workflow...

[juancarlospaco]

is Julia lang supported by Poetry ?, thats interesting.

Poetry crashes on start on my computer complaining:

$ poetry add nimporter

The currently activated Python version 3.9 is not supported by the project (3.9).
Trying to find and use a compatible version.
  NoCompatiblePythonVersionFound
Poetry was unable to find a compatible version.

$

The problem is I dont know how to use Poetry, crashes on my PC, seems unstable this is the official vanilla CPython 3.9.

Theres a few packages that you can install with PIP for a workflow with Nim:

• https://github.com/Pebaz/nimporter to run the code directly.
• https://github.com/juancarlospaco/choosenim_install to install Nim from PIP, if you dont have it.

Can not be made with a bash script ?, the Poetry crash has nothing to do with Nim...

I dont know what you suggest to do...

[00sapo]

Developing in python without virtualenv is out of discussion.

Please, provide an option working with one among virtualenv, conda, or poetry.

[00sapo]

@juancarlospaco do you plan to work on this in future?

[00sapo]

Thank you so much, we just needed to use poetry in front of nim compiler so that it knows against which python version it should compile