ImportError: cannot import name 'checksum' from 'modeltranslation.models'

[hungtooc]

here is the installed module:
Package Version

---

appdirs 1.4.4
APScheduler 2.1.2
asgiref 3.3.1
attrs 19.3.0
Automat 0.8.0
bandit 1.5.1
beautifulsoup4 4.9.3
blinker 1.4
boto3 1.16.0
botocore 1.19.0
certifi 2020.6.20
chardet 3.0.4
click 7.1.2
cloud-init 20.3
colorama 0.4.4
colorlog 4.0.2
colormath 3.0.0
command-not-found 0.3
configobj 5.0.6
constantly 15.1.0
coverage 5.3
croniter 0.3.35
cryptography 2.8
cursor 1.3.4
dbus-python 1.2.16
decorator 4.4.2
distro 1.4.0
distro-info 0.23ubuntu1
Django 2.2.16
django-amazon-ses 4.0.0
django-appconf 1.0.4
django-cacheops 5.0.1
django-cursor-pagination 0.1.4
django-cuser 2017.3.16
django-extensions 3.0.9
django-imagekit 4.0.2
django-media-fixtures 0.0.3
django-model-utils 4.0.0
django-modeltranslation 0.16
django-nose 1.4.7
django-ordered-model 3.4.1
django-positions 0.6.0
django-proxy 1.2.1
django-redis 4.12.1
django-replicated 2.7
django-rq 2.3.2
django-rq-scheduler 1.1.3
django-storages 1.8
django-tinymce 3.1.0
djangorestframework 3.12.1
dparse 0.5.1
entrypoints 0.3
Faker 0.9.1
ffmpy 0.2.3
filelock 3.0.12
funcy 1.15
gitdb 4.0.5
GitPython 3.1.9
halo 0.0.30
httplib2 0.14.0
hyperlink 19.0.0
idna 2.10
importlib-metadata 1.5.0
incremental 16.10.1
Jinja2 2.10.1
jmespath 0.10.0
jsonpatch 1.22
jsonpointer 2.0
jsonschema 3.2.0
keyring 18.0.1
langdetect 1.0.8
language-selector 0.1
launchpadlib 1.10.13
lazr.restfulclient 0.14.2
lazr.uri 1.0.3
log-symbols 0.0.14
MarkupSafe 1.1.0
mixer 6.1.3
modeltranslation 0.25
more-itertools 4.2.0
mysqlclient 2.0.1
natsort 7.0.1
netifaces 0.10.4
networkx 2.5
nose 1.3.7
nose-exclude 0.5.0
numpy 1.19.2
oauthlib 3.1.0
onesignal-sdk 1.1.0
packaging 20.4
pathtools 0.1.2
pbr 5.5.1
pexpect 4.6.0
pilkit 2.0
Pillow 8.0.0
pinocchio 0.4.2
pip 20.0.2
pyasn1 0.4.2
pyasn1-modules 0.2.1
PyGObject 3.36.0
PyHamcrest 1.9.0
PyJWT 1.7.1
pymacaroons 0.13.0
PyNaCl 1.3.0
pyOpenSSL 19.0.0
pyparsing 2.4.7
pyrsistent 0.15.5
pyserial 3.4
python-apt 2.0.0+ubuntu0.20.4.1
python-dateutil 2.8.1
python-debian 0.1.36ubuntu1
python-dotenv 0.14.0
python-magic 0.4.18
pytz 2020.1
PyYAML 5.3.1
redis 3.5.3
requests 2.24.0
requests-file 1.5.1
requests-unixsocket 0.2.0
rest-framework-generic-relations 2.0.0
rq 1.5.2
rq-scheduler 0.10.0
s3transfer 0.3.3
safety 1.9.0
schedule 0.6.0
SecretStorage 2.3.1
sentry-sdk 0.10.2
service-identity 18.1.0
setuptools 45.2.0
shutilwhich 1.1.0
simplejson 3.16.0
six 1.15.0
smmap 3.0.4
sos 4.0
soupsieve 2.0.1
spectra 0.0.11
spinners 0.0.24
sqlparse 0.4.1
ssh-import-id 5.10
stevedore 3.2.2
systemd-python 234
termcolor 1.1.0
text-unidecode 1.2
tldextract 2.2.3
toml 0.10.1
Twisted 18.9.0
tzlocal 2.1
ubuntu-advantage-tools 20.3
ufw 0.36
unattended-upgrades 0.1
uritools 3.0.0
url-normalize 1.4.2
urlextract 1.1.0
urllib3 1.25.11
wadllib 1.3.3
watchdog 0.10.3
webpreview 1.6.0
wheel 0.34.2
zipp 3.3.1
zope.interface 4.7.1

[linda-benboudiaf]

Same problem here :
BASE_DIR /home/linda/Desktop/mametamorphose/wsway
ROOT_DIR /home/linda/Desktop/mametamorphose
MEDIA_ROOT /home/linda/Desktop/mametamorphose/media/
STATIC_ROOT /home/linda/Desktop/mametamorphose/static
Traceback (most recent call last):
File "./manage.py", line 22, in
main()
File "./manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "/home/linda/.local/lib/python3.8/site-packages/django/core/management/init.py", line 401, in execute_from_command_line
utility.execute()
File "/home/linda/.local/lib/python3.8/site-packages/django/core/management/init.py", line 377, in execute
django.setup()
File "/home/linda/.local/lib/python3.8/site-packages/django/init.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "/home/linda/.local/lib/python3.8/site-packages/django/apps/registry.py", line 122, in populate
app_config.ready()
File "/home/linda/.local/lib/python3.8/site-packages/modeltranslation/apps.py", line 11, in ready
handle_translation_registrations()
File "/home/linda/.local/lib/python3.8/site-packages/modeltranslation/models.py", line 75, in handle_translation_registrations
autodiscover()
File "/home/linda/.local/lib/python3.8/site-packages/modeltranslation/models.py", line 26, in autodiscover
import_module(module)
File "/usr/lib/python3.8/importlib/init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1014, in _gcd_import
File "", line 991, in _find_and_load
File "", line 975, in _find_and_load_unlocked
File "", line 671, in _load_unlocked
File "", line 783, in exec_module
File "", line 219, in _call_with_frames_removed
File "/home/linda/.local/lib/python3.8/site-packages/modeltranslation/translation.py", line 3, in
from modeltranslation.models import checksum, FieldTranslation, trans_attr, trans_is_fuzzy_attr
ImportError: cannot import name 'checksum' from 'modeltranslation.models' (/home/linda/.local/lib/python3.8/site-packages/modeltranslation/models.py)