''choices' must be an iterable containing (actual value, human readable name) tuples

Having an error when trying to set choices on model field. Here's the code:

TICKET = 'TICKET',
TICKET_HISTORY = 'TH'
TICKET_RATE = 'TR'
PASSWORD_CHANGE = 'PASS'
CONTENT = 'CN'

TYPE_CHOICES = [
    (TICKET, 'Ticket created'), (TICKET_HISTORY, 'Ticket changed'), (TICKET_RATE, 'Ticket rated'),
    (PASSWORD_CHANGE, 'Password changed'), (CONTENT, 'Added content')
]

type = models.CharField(max_length=6, choices=TYPE_CHOICES, default=TICKET)

TYPE_CHOICES seems to be correct, can't understand where's the issue with it

Exception:

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at    0x7f8acad18bf8>
Traceback (most recent call last):
  File "/home/userwoozer/work/tickets/env/lib/python3.6/site-packages/django/utils/autoreload.py", line 225, in wrapper
fn(*args, **kwargs)
  File "/home/userwoozer/work/tickets/env/lib/python3.6/site-packages/django/core/management/commands/runserver.py", line 117, in inner_run
self.check(display_num_errors=True)
  File "/home/userwoozer/work/tickets/env/lib/python3.6/site-packages/django/core/management/base.py", line 425, in check
raise SystemCheckError(msg)
django.core.management.base.SystemCheckError: SystemCheckError: System check identified some issues:

ERRORS:
main.Activity.type: (fields.E005) 'choices' must be an iterable containing (actual value, human readable name) tuples.

python django

Solution 1:^[1]

Just remove , at line 1 in your code: TICKET = 'TICKET',

Solution 2:^[2]

*Just dropping this here thinking it might help someone

In my case I was facing this issue while running the makemigrations command and had my choices defined like below,

ACTION_TYPE = (
    (RATE_ADVISOR, 'Rate Advisor')
)

I just put a comma at the end of the choice and my issue was resolved

ACTION_TYPE = (
    (RATE_ADVISOR, 'Rate Advisor'), #note this comma here
)

Solution 3:^[3]

Actually this error said that You are forget to put 2 values in one of the inner tuple. This usually happens when you insert bigger size values.

Answer:

Recheck your Inner Tuple Value.
One of them must include 1 value or more than 2 values i.e. greater than 3 or equal.

Solution 4:^[4]

The problem was that you have a col(,) after "TICKET" and that means you pass a tuple inside another one as you see!

TYPE_CHOICES = [
    ((TICKET), 'Ticket created'), (TICKET_HISTORY, 'Ticket changed'),
]

So this is was the problem Actually, you can use something like this

class TYPE_CHOICES(models.TextChoices):
    TICKET = "TICKET", "Ticket created"

type = models.CharField(max_length=6, choices=TYPE_CHOICES.choices, 
    default=TYPE_CHOICES.TICKET)

Hope this helps somebody!

Solution 5:^[5]

TYPE_CHOICES = (
    ('TICKET', 'Ticket created'), 
    ('TICKET_HISTORY', 'Ticket changed'), 
    ('TICKET_RATE', 'Ticket rated'),
    ('PASSWORD_CHANGE', 'Password changed'), 
    ('CONTENT', 'Added content')
)

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1	Nguy?n V? Thiên
Solution 2	Adnan Sheikh
Solution 3	himanshu11sgh
Solution 4	Mahmoud Emad
Solution 5	Ahx

''choices' must be an iterable containing (actual value, human readable name) tuples

Solution 1:[1]

Solution 2:[2]

Solution 3:[3]

Solution 4:[4]

Solution 5:[5]