Why cant I import kanren.constraints and kanren.graph

[wirtschaftswunder]

Hello everyone,

Did install minikanren on Ubuntu 18(bionic) system via pyenv and first examples work (Python 3.9.10) but when I try to import from
kanren.constraints and kanren.graph I m only getting No module named 'kanren.graph error .
Install was done via pip and believe latest version is used (1.0.3)
Was there something removed as dir(kanren) doesn't shows any constraints or graph

Rgds

Gottfried

[brandonwillard]

If you can provide an MWE that reproduces the environment in which you're working, I can take a look.

[wirtschaftswunder]

Brandon,
I did it again with pip install miniKanren==1.0.2 and it is working but it does not with latest version and following command pip install miniKanren

It starts with import error for etuples but when I repeat import command it is accepted and also goals and Relation import correct
Only graph and constraints show no module error

from etuples.core import etuple, ExpressionTuple
Traceback (most recent call last):
File "", line 1, in
File "/home/goenzoy/.pyenv/versions/kanren/lib/python3.9/site-packages/etuples/init.py", line 3, in
from .dispatch import apply, arguments, etuplize, operator, rands, rator, term
File "/home/goenzoy/.pyenv/versions/kanren/lib/python3.9/site-packages/etuples/dispatch.py", line 3, in
from cons.core import ConsError, ConsNull, ConsPair, car, cdr, cons
File "/home/goenzoy/.pyenv/versions/kanren/lib/python3.9/site-packages/cons/init.py", line 1, in
from . import unify # noqa: F401
File "/home/goenzoy/.pyenv/versions/kanren/lib/python3.9/site-packages/cons/unify.py", line 4, in
from unification.core import _reify, _unify, construction_sentinel
ImportError: cannot import name 'construction_sentinel' from 'unification.core' (/home/goenzoy/.pyenv/versions/kanren/lib/python3.9/site-packages/unification/core.py)
from etuples.core import etuple, ExpressionTuple
from kanren.goals import conso
from kanren import Relation, facts
from kanren.graph import walko
Traceback (most recent call last):
File "", line 1, in
ModuleNotFoundError: No module named 'kanren.graph'

If I do the same with 1.0.2 it is fine like below

Successfully installed miniKanren-1.0.2
WARNING: You are using pip version 21.2.4; however, version 23.3.1 is available.
You should consider upgrading via the '/home/goenzoy/.pyenv/versions/3.9.10/envs/kanren2/bin/python3.9 -m pip install --upgrade pip' command.
(kanren2) XXXXXXXXXXX:~$ python (just blanked host-name)
Python 3.9.10 (main, Jul 29 2023, 23:55:02)
[GCC 7.5.0] on linux
Type "help", "copyright", "credits" or "license" for more information.

from etuples.core import etuple, ExpressionTuple
from kanren import Relation, facts
from kanren.goals import conso
from kanren.graph import walko
from functools import reduce
import csv
from kanren.constraints import neq, isinstanceo