IndexError: list index out of range (empty choices iterable)

[anonymous]

I have just installed django 1.7rc2. When trying to run the development server with manage.py I get the following error:

TypeError: Error when calling the metaclass bases
    'itertools.tee' object has no attribute '__getitem__'    

Full traceback at: ​https://dpaste.de/8JS9.

Django 1.7rc1 works perfectly well.

[Baptiste Mispelon]

Hi,

This seems like a duplicate of #23112.
Can you confirm and reopen this ticket if that's not the case?

Thanks.

[anonymous]

I ran ​https://github.com/django/django/pull/2990, but the problem is still there: ​http://pastebin.com/AX2t7YxT

[Lemuel Formacil]

I have the same issue (similar traceback as the one in the ticket description; triggered by the same 3rd party library) but after using the branch in ​https://github.com/django/django/pull/2990 the development server worked for me. Let me know if there's any info I can add.

[Collin Anderson]

Good catch. Your new traceback actually shows a different error (IndexError: list index out of range) that happens if the iterable is empty, which was fine on 1.6.

field = models.CharField(choices=(x for x in []), blank=True, max_length=1)

I've commented on the first ticket. https://code.djangoproject.com/ticket/23112#comment:16

[Areski Belaid]

See the last commit that solve ticket #23112 (​https://github.com/django/django/pull/2990), it should fix this issue too.

[anonymous]

The last commit that solved ticket #23112 (​​https://github.com/django/django/pull/2990) fixed the issue for me, too.

[Areski Belaid]

I think we could close this ticket and mark it as duplicate

[Collin Anderson]

I agree.