“Too many values to unpack” Exception

by

That exception means that you are trying to unpack a tuple, but the tuple has too many values with respect to the number of target variables. For example: this work, and prints 1, then 2, then 3

def returnATupleWithThreeValues():
    return (1,2,3)
a,b,c = returnATupleWithThreeValues()
print a
print b
print c

But this raises your error

def returnATupleWithThreeValues():
    return (1,2,3)
a,b = returnATupleWithThreeValues()
print a
print b

raises

Traceback (most recent call last):
  File "c.py", line 3, in ?
    a,b = returnATupleWithThreeValues()
ValueError: too many values to unpack

Now, the reason why this happens in your case, I don’t know, but maybe this answer will point you in the right direction.

More Related Contents:

  1. Does the django-rest-framework provide an admin site to manage models?
  2. Django dynamic model fields
  3. How to convert JSON data into a Python object?
  4. Django filter queryset __in for *every* item in list
  5. Django optional url parameters
  6. How to change the name of a Django app?
  7. Reference list item by index within Django template?
  8. How to stream an HttpResponse with Django
  9. Django post_save() signal implementation
  10. Django sort by distance
  11. Trying to parse `request.body` from POST in Django [duplicate]
  12. Elegant setup of Python logging in Django
  13. How can I schedule a Task to execute at a specific time using celery?
  14. Django and query string parameters
  15. Django circular model reference
  16. Access request in django custom template tags
  17. How to install virtualenv without using sudo?
  18. Heroku fails to install pywin32 library
  19. Running django tutorial tests fail – No module named polls.tests
  20. How does the order of mixins affect the derived class?
  21. Django widget override template
  22. What’s the purpose of Django setting ‘SECRET_KEY’?
  23. Django-DB-Migrations: cannot ALTER TABLE because it has pending trigger events
  24. Good ways to sort a queryset? – Django
  25. Why django urls end with a slash?
  26. Permission to view, but not to change! – Django
  27. Django: app level variables
  28. How do I access dictionary keys that contain hyphens from within a Django template?
  29. CSRF validation does not work on Django using HTTPS
  30. How to use custom AdminSite class?

Leave a Comment