"console", "dummy", and "locmem" email backends should accept generators to send_messages() just as "smtp" backend does

[brendoncrawford]

I am working on a patch, which I will submit via Github pull request soon.

[brendoncrawford]

Github Pull Request is Here:

​https://github.com/django/django/pull/991

Test:

from django.core.management.base import BaseCommand
from django.core import mail


class Command(BaseCommand):
    help = 'Test for https://code.djangoproject.com/ticket/20194'

    def handle(self, *args, **options):
        mail_from = "root+foo@localhost"
        msgs = [
            ("root+baz@localhost", "Test 1", "Test 1 Body"),
            ("root+baz@localhost", "Test 2", "Test 2 Body")
        ]
        cb = lambda m: mail.EmailMessage(m[1], m[2], mail_from, [m[0]])
        email_messages = (cb(m) for m in msgs)
        conn = mail.get_connection()
        conn.open()
        sent_count = conn.send_messages(email_messages)
        conn.close()
        print("Sent: %d" % sent_count)
        return ''

[Simon Charette]

Your test must be integrated into the test suite.

An additional test_send_messages_generator method on the mail.tests.BaseEmailBackendTests ​class should do.

[Alex Gaynor <alex.gaynor@…>]

In 5ac7f777cde6cdabee8c804fd8c71c4fd5f71d3c:

Merge pull request #991 from stockr-labs/feature/email-backends-generators

Fixed #20194 -- Adds generators support for email backends that do not support it.