The problem
I'm trying to send a Djoser user's activation email using django-mailer.
However, I receive the following error:
TL;DR:
TypeError: cannot pickle '_io.BufferedReader' object
FULL:
Traceback (most recent call last):
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/django/core/handlers/exception.py", line 55, in inner
response = get_response(request)
^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/django/core/handlers/base.py", line 197, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view
return view_func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/rest_framework/viewsets.py", line 125, in view
return self.dispatch(request, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/rest_framework/views.py", line 509, in dispatch
response = self.handle_exception(exc)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/rest_framework/views.py", line 469, in handle_exception
self.raise_uncaught_exception(exc)
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception
raise exc
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/rest_framework/views.py", line 506, in dispatch
response = handler(request, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/rest_framework/mixins.py", line 19, in create
self.perform_create(serializer)
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/djoser/views.py", line 144, in perform_create
settings.EMAIL.activation(self.request, context).send(to)
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/templated_mail/mail.py", line 78, in send
super(BaseEmailMessage, self).send(*args, **kwargs)
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/django/core/mail/message.py", line 298, in send
return self.get_connection(fail_silently).send_messages([self])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/mailer/backend.py", line 15, in send_messages
messages = Message.objects.bulk_create([
^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/mailer/backend.py", line 16, in <listcomp>
Message(email=email) for email in email_messages
^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/django/db/models/base.py", line 554, in __init__
_setattr(self, prop, value)
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/mailer/models.py", line 150, in _set_email
self.message_data = email_to_db(val)
^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/mailer/models.py", line 94, in email_to_db
return base64_encode(pickle.dumps(email)).decode('ascii')
^^^^^^^^^^^^^^^^^^^
TypeError: cannot pickle '_io.BufferedReader' object
Internal Server Error: /api/auth/users/
Traceback (most recent call last):
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/django/core/handlers/exception.py", line 55, in inner
response = get_response(request)
^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/django/core/handlers/base.py", line 197, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view
return view_func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/rest_framework/viewsets.py", line 125, in view
return self.dispatch(request, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/rest_framework/views.py", line 509, in dispatch
response = self.handle_exception(exc)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/rest_framework/views.py", line 469, in handle_exception
self.raise_uncaught_exception(exc)
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception
raise exc
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/rest_framework/views.py", line 506, in dispatch
response = handler(request, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/rest_framework/mixins.py", line 19, in create
self.perform_create(serializer)
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/djoser/views.py", line 144, in perform_create
settings.EMAIL.activation(self.request, context).send(to)
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/templated_mail/mail.py", line 78, in send
super(BaseEmailMessage, self).send(*args, **kwargs)
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/django/core/mail/message.py", line 298, in send
return self.get_connection(fail_silently).send_messages([self])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/mailer/backend.py", line 15, in send_messages
messages = Message.objects.bulk_create([
^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/mailer/backend.py", line 16, in <listcomp>
Message(email=email) for email in email_messages
^^^^^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/django/db/models/base.py", line 554, in __init__
_setattr(self, prop, value)
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/mailer/models.py", line 150, in _set_email
self.message_data = email_to_db(val)
^^^^^^^^^^^^^^^^
File "/Users/joaoalbuquerque/pyenv/versions/3.11.0/envs/garvy/lib/python3.11/site-packages/mailer/models.py", line 94, in email_to_db
return base64_encode(pickle.dumps(email)).decode('ascii')
^^^^^^^^^^^^^^^^^^^
TypeError: cannot pickle '_io.BufferedReader' object
Libraries and versions used (Python 3.11):
"djangorestframework==3.14.0",
"dj-database-url==1.0.0",
"psycopg2-binary==2.9.5",
"django-cors-headers==3.13.0",
"gunicorn==20.1.0",
"pyjwt==2.6.0",
"python-dotenv==0.21.0",
"djoser==2.1.0",
"djangorestframework-simplejwt==4.8.0",
"django-mailer==2.1",
What I've already tried:
I found this related issue on Djoser's Github. However resolution support with django-mailer in version 2.1 didn't work around here.
Related issue: https://github.com/sunscrapers/djoser/issues/609