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Asn1 parsing error when trying to connect to mongo atlas

I am using MongoDB atlas for my discord bot but recently ran into an error. On the hosting (Heroku) everything works without errors, I first updated all the modules, but the error has not disappeared.
I am using motor as a driver to work with MongoDB atlas.
Checked the database connection URL, everything is correct.
Python version 3.10(on Heroku too)
Traceback (most recent call last):
File "D:\Проекты\AkainuBot\main.py", line 23, in <module>
mongo = AsyncIOMotorClient(
File "D:\Python\lib\site-packages\motor\core.py", line 159, in __init__
delegate = self.__delegate_class__(*args, **kwargs)
File "D:\Python\lib\site-packages\pymongo\mongo_client.py", line 718, in __init__
self.__options = options = ClientOptions(
File "D:\Python\lib\site-packages\pymongo\client_options.py", line 165, in __init__
self.__pool_options = _parse_pool_options(options)
File "D:\Python\lib\site-packages\pymongo\client_options.py", line 132, in _parse_pool_options
ssl_context, ssl_match_hostname = _parse_ssl_options(options)
File "D:\Python\lib\site-packages\pymongo\client_options.py", line 98, in _parse_ssl_options
ctx = get_ssl_context(
File "D:\Python\lib\site-packages\pymongo\ssl_support.py", line 159, in get_ssl_context
ctx.load_verify_locations(certifi.where())
File "D:\Python\lib\site-packages\pymongo\pyopenssl_context.py", line 276, in load_verify_locations
self._callback_data.trusted_ca_certs = _load_trusted_ca_certs(cafile)
File "D:\Python\lib\site-packages\pymongo\ocsp_support.py", line 79, in _load_trusted_ca_certs
_load_pem_x509_certificate(cert_data, backend))
File "D:\Python\lib\site-packages\cryptography\x509\base.py", line 436, in load_pem_x509_certificate
return rust_x509.load_pem_x509_certificate(data)
ValueError: error parsing asn1 value: ParseError { kind: InvalidValue, location: ["RawCertificate::tbs_cert", "TbsCertificate::serial"] }

I've solved my problem getting the parsing asn1 value error by adding the ssl_cert_reqs option on the MongoClient (and obviously importing ssl).
dbClient = pymongo.MongoClient(uri, ssl_cert_reqs=ssl.CERT_NONE)

ldap.OPT_X_TLS_CACERTDIR is not working with certificate file in the directory

My certificate is present in /etc/certs/mycer.pem file and I am able to authenticate with ldap using code below:
import ldap
import os
ldap.set_option(ldap.OPT_X_TLS_REQUIRE_CERT, ldap.OPT_X_TLS_DEMAND)
ls = ldap.initialize('ldaps://<ip>:10636')
ls.set_option(ldap.OPT_REFERRALS, 0)
ls.set_option(ldap.OPT_PROTOCOL_VERSION, 3)
ls.set_option(ldap.OPT_X_TLS_CACERTFILE, "/etc/certs/mycer.pem") # line 7
ls.set_option(ldap.OPT_X_TLS_NEWCTX, 0)
ls.simple_bind_s('uid=admin,ou=system', 'secret')
But if I change OPT_X_TLS_CACERTFILE to OPT_X_TLS_CACERTDIR in line 7 as:
ls.set_option(ldap.OPT_X_TLS_CACERTDIR, "/etc/certs/")
Code is not able to authenticate and throws error
>>> ls.simple_bind_s('uid=admin,ou=system', 'secret')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.6/dist-packages/ldap/ldapobject.py", line 445, in simple_bind_s
msgid = self.simple_bind(who,cred,serverctrls,clientctrls)
File "/usr/local/lib/python3.6/dist-packages/ldap/ldapobject.py", line 439, in simple_bind
return self._ldap_call(self._l.simple_bind,who,cred,RequestControlTuples(serverctrls),RequestControlTuples(clientctrls))
File "/usr/local/lib/python3.6/dist-packages/ldap/ldapobject.py", line 331, in _ldap_call
reraise(exc_type, exc_value, exc_traceback)
File "/usr/local/lib/python3.6/dist-packages/ldap/compat.py", line 44, in reraise
raise exc_value
File "/usr/local/lib/python3.6/dist-packages/ldap/ldapobject.py", line 315, in _ldap_call
result = func(*args,**kwargs)
ldap.SERVER_DOWN: {'desc': "Can't contact LDAP server", 'info': '(unknown error code)'}
There is only one file in the directory. How can python-ldap use multiple certificate files if this is not the correct way.

As I understand it, python will use OpenSSL and it subsequently scans the OPT_X_TLS_CACERTDIR directory for certificate files named *.crt.
But I cannot for the life of me find the source of that wisdom.
Edit:
I found an old script of mine that contains both:
conn.set_option(ldap.OPT_X_TLS_CACERTFILE, "")
conn.set_option(ldap.OPT_X_TLS_CACERTDIR, "/etc/ssl/cacerts")
Could it be that this empty OPT_X_TLS_CACERTFILE setting is somehow required?

Twisted reactor.listenUNIX erroring after update to python 3.8

I have updated twisted from 13.0.0 to 20.3.0 and python from 2.7 to 3.8 and now twisted is throwing this not helpful error. (Ubuntu 16.04.6 LTS)
I verified the permissions of the .sock file and the directory, made sure the socket file is deleted before reactor.listenUNIX is called.
What could be the cause of this and how can I troubleshoot this issue?
class UserServer(Plugin):
def setup(self):
socket = self.parent.socket
if os.path.exists(socket):
os.remove(socket)
self.console(socket)
self.console(self.parent.config.get_umask('sock'))
self.factory = UserServerFactory(self.parent)
reactor.listenUNIX(socket, self.factory, mode=self.parent.config.get_umask('sock'))
service: 'user_server' failed to initialize
Traceback (most recent call last):
File "/home/mcgen/tools/mark2/mk2/plugins/__init__.py", line 335, in load
plugin = cls(self.parent, name, **kwargs)
File "/home/mcgen/tools/mark2/mk2/plugins/__init__.py", line 165, in __init__
self.setup()
File "/home/mcgen/tools/mark2/mk2/services/user_server.py", line 148, in setup
reactor.listenUNIX(socket, self.factory, mode=self.parent.config.get_umask('sock'))
File "/usr/local/lib/python3.8/dist-packages/twisted/internet/posixbase.py", line 397, in listenUNIX
p.startListening()
File "/usr/local/lib/python3.8/dist-packages/twisted/internet/unix.py", line 408, in startListening
self.startReading()
File "/usr/local/lib/python3.8/dist-packages/twisted/internet/abstract.py", line 435, in startReading
self.reactor.addReader(self)
File "/usr/local/lib/python3.8/dist-packages/twisted/internet/epollreactor.py", line 109, in addReader
self._add(reader, self._reads, self._writes, self._selectables,
File "/usr/local/lib/python3.8/dist-packages/twisted/internet/epollreactor.py", line 96, in _add
self._poller.register(fd, flags)
OSError: [Errno 22] Invalid argument

django-nonrel syncdb and mongodb: pymongo.errors.OperationFailure

I am using django-nonrel with mongodb-engine I am getting the following error when I run python manage.py syncdb:
Traceback (most recent call last):
File "manage.py", line 22, in <module> execute_from_command_line(sys.argv)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/django/core/management/__init__.py", line 399, in execute_from_command_line
utility.execute()
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/django/core/management/__init__.py", line 392, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/django/core/management/base.py", line 242, in run_from_argv
self.execute(*args, **options.__dict__)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/django/core/management/base.py", line 285, in execute
output = self.handle(*args, **options)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/django/core/management/base.py", line 415, in handle
return self.handle_noargs(**options)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 147, in handle_noargs
index_sql = connection.creation.sql_indexes_for_model(model, self.style)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/django_mongodb_engine/creation.py", line 49, in sql_indexes_for_model
self._handle_oldstyle_indexes(ensure_index, meta)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/django_mongodb_engine/creation.py", line 116, in _handle_oldstyle_indexes
sparse=field.name in sparse_indexes)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/django_mongodb_engine/creation.py", line 42, in ensure_index
return collection.ensure_index(*args, **kwargs)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/pymongo/collection.py", line 1420, in ensure_index
self.__create_index(keys, kwargs)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/pymongo/collection.py", line 1298, in __create_index
sock_info, cmd, read_preference=ReadPreference.PRIMARY)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/pymongo/collection.py", line 208, in _command
read_concern=read_concern)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/pymongo/pool.py", line 239, in command
read_concern)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/pymongo/network.py", line 102, in command
helpers._check_command_response(response_doc, None, allowable_errors)
File "/Users/<user>/site/qmcdb/lib/python2.7/site-packages/pymongo/helpers.py", line 205, in _check_command_response
raise OperationFailure(msg % errmsg, code, response)
pymongo.errors.OperationFailure: The field 'sparse' is not valid for an _id index specification. Specification: { ns: "qmcdb_mongodb.django_admin_log", v: 2, sparse: false, unique: true, name: "_id_1", key: { _id: 1 } }
I have no idea what is wrong. I've been trying to get mongodb to work with django and I have been having a lot of issues. My settings.py:
DATABASES = {
'default': {
'ENGINE': 'django_mongodb_engine',
'NAME': 'qmcdb_mongodb',
'PORT': 27017,
'HOST': 'localhost'
}
}
I hope I have posted enough background information. I would really appreciate any help.

Try use Mongo database in version 3.2, There is some problem with mongoengine and Mongo Server 3.4

1.Tested syncdb in MongoDB version 3.2 3.4, it still raising error.
2.In the MongoDB 2.6 syncdb is running fine with a minor unrelated problem.I still got an error in version 2.6 and fixed with this(https://gist.github.com/ielshareef/2986459).
3.django_mongodb_engine is so buggy which was forked from django1.3 . Also, this repo is outdated that last commit was on Jul 13, 2015. I should not recommend this package.
4.I would recommend https://github.com/MongoEngine/django-mongoengine

My hacky solution to this was modifying lines 115-116 of Lib\site-packages\django_mongodb_engine\creation.py
from this:
ensure_index(column, unique=field.unique,
sparse=field.name in sparse_indexes)
to this:
ensure_index(column)
It seems to clear the error, but I'm sure it's gonna make something somewhere fail catastrophically because I have no idea what I'm doing.
I'll be waiting on a better answer too.

I recommend you use:
pip3 install git+https://github.com/MongoEngine/django-mongoengine
Django 1.11.2
Python 3.6
MongoDB 3.4
Always is good, use versions updated of packages, use isolation of environment.
https://virtualenvwrapper.readthedocs.io/en/latest/install.html

django 1.10.3 Cannot resolve bases after flush

I have a playground for model developement.
When running python manage.py makemigrations the Error
Traceback (most recent call last):
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
utility.execute()
File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/core/management/__init__.py", line 359, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/core/management/base.py", line 294, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/core/management/base.py", line 345, in execute
output = self.handle(*args, **options)
File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/core/management/commands/makemigrations.py", line 173, in handle
migration_name=self.migration_name,
File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/db/migrations/autodetector.py", line 47, in changes
changes = self._detect_changes(convert_apps, graph)
File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/db/migrations/autodetector.py", line 132, in _detect_changes
self.old_apps = self.from_state.concrete_apps
File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/db/migrations/state.py", line 180, in concrete_apps
self.apps = StateApps(self.real_apps, self.models, ignore_swappable=True)
File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/db/migrations/state.py", line 242, in __init__
self.render_multiple(list(models.values()) + self.real_models)
File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/db/migrations/state.py", line 285, in render_multiple
"for more" % (new_unrendered_models, get_docs_version())
django.db.migrations.exceptions.InvalidBasesError: Cannot resolve bases for [<ModelState: 'main.Component'>, <ModelState: 'main.MagneticConfig'>, <ModelState: 'main.NetStructure'>, <ModelState: 'main.Program'>, <ModelState: 'main.FilePath'>]
This can happen if you are inheriting models from an app with migrations (e.g. contrib.auth)
in an app with no migrations; see https://docs.djangoproject.com/en/1.10/topics/migrations/#dependencies for more
Keeps occuring though i tried a hell of a lot:
of course python manage.py makemigration <appName>
python manage.py migrate <appName>
drop all tables from the app
python manage.py squashmigrations main 0001
emptied the models.py file
uncommented the app in settings
read everything i could find on that
flushing the whole database python manage.py flush
Any idea, how to solve this? Thanks,
Daniel
Edit Nov_29:
Stack trace added

Finally i got the solution. I found out, that the migrations are stored in a file in the application folder. You can delete these by hand. Of course, you need to be very careful with this.
Take a look at this if you got the same problem.