<django.utils.functional.lazy.<locals>.__proxy__ object at 0x7feb8a56f5f8> is not JSON serializable

[alsoicode]

Python Social Auth has suddenly stopped working for me. I have the Facebook, Twitter and Google backends configured, but now I'm getting this error when clicking one of the authorization links:

<django.utils.functional.lazy.<locals>.__proxy__ object at 0x7feb8a56f5f8> is not JSON serializable

My project is built on Python 3.4 and Django 1.7.1.

[frankier]

Tangentially related: omab/django-social-auth#711

I have the same or similar bug. For me it only occurs when an unsanitary url is specified as ?next= which causes LOGIN_REDIRECT_URL to be saved in the session without calling force_text(...).

It's common to use reverse_lazy(...) in settings.py to specify urls. Django's default session serialiser doesn't support lazy objects (by design: https://code.djangoproject.com/ticket/5590 ). We know that in the specific case of django-social-auth it's safe to call foce_text before saving to the session so it's up to django-social-auth to support lazy_reverse settings.

I'm working on a PR.

[frankier]

@alsoicode: All that said, maybe you could provide a full traceback so we can be sure it's the same issue?

[alsoicode]

Hi everyone. I'm slammed this morning, but I should be able to get you a
full traceback today. I'm almost certain setting the LOGIN_REDIRECT_URL via
reverse_lazy is what's causing the issue, because as soon as I changed it
back to a hard-coded value, everything worked as expected again.

On Fri, Dec 19, 2014 at 9:51 AM, Frankie Robertson <notifications@github.com

wrote:

@alsoicode https://github.com/alsoicode: All that said, maybe you could
provide a full traceback so we can be sure it's the same issue?

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