[Bug]:【python】the data appears as garbled characters on Redis.

[YmaYeah]

Preconditions (Any important steps we need to know)
1.【not sure】pip install django-redis
2.【must be】Configurate file configuration(in file settings)
CACHES = {
"default": {
"BACKEND": "django_redis.cache.RedisCache",
"LOCATION": "redis://127.0.0.1:6379",
"OPTIONS": {
"CLIENT_CLASS": "django_redis.client.DefaultClient",
"CONNECTION_POOL_KWARGS": {"max_connections": 100}
}
}
}

Steps to reproduce (How to reproduce what you found step by step)
1.[Configurate url]
urlpatterns = [path('redis_test/',RedisTestView.as_view())]

2.[Configurate view]
class RedisTestView(APIView):
def get(self,request):
cache.set('star',[1,2,3])
return ApiResponse()

3.[Test in Postman]
http://127.0.0.1:8000/api/v1/home/redis_test/
Actual behavior (A short description of what you found)
the data appears as garbled characters on Redis
key:":1:star" val:'����]�(K�K�K�e.'
Expected behavior (A short description of what you expected to find)
key:":1:star" val:"[1, 2, 3]"by pickle.loads

Screenshots (Paste or drag-and-drop a screenshot or a link to a recording)

Additional context (Operating system, version of RedisInsight, Redis database version, Redis module version, database type, connection type, logs, or any other information)
Operating system:macOS Ventura 13.0
version of RedisInsight:2.26.0
Redis database version:7.0.11 (bottled), HEAD
Redis module version：redis 7.0.11_1
connection type：NoSQL
version of Django：3.2.12
version of django-redis：5.3.0

[YmaYeah]

Please make sure it's correct, thank you!

[ViktarStarastsenka]

hi @YmaYeah , can you please share an example of this data (but please remove all the sensitive information)

[YmaYeah]

luffy_api.zip
pls check luffy_api--->apps--->home--->views.py--->RedisTestView(APIView)

[YmaYeah]

hi @YmaYeah , can you please share an example of this data (but please remove all the sensitive information）
done ，pls check

[ViktarStarastsenka]

@YmaYeah , can you please provide just an example of the data you see with garbled characters? it will be helpful to look at it in ASCII format

[YmaYeah]

@YmaYeah , can you please provide just an example of the data you see with garbled characters? it will be helpful to look at it in ASCII format

okkkk, I write [1,2,3]it is a list,redis shows 8004950b000000000000005d94284b014b024b03652e by HEX
����]�(K�K�K�e. by Unicode
\x80\x04\x95\x0b\x00\x00\x00\x00\x00\x00\x00]\x94(K\x01K\x02K\x03e.by ASCII

[ViktarStarastsenka]

thank you, we need to look deeper into this, so it may take some time

[DhanushR24]

Hi there,
I am facing this issue as well.

Also, on hovering on the "garbled characters" it shows Failed to convert to Pickle message.

[rad-pat]

The problem I experience with this that results in the Failed to convert to Pickle is that my keys are stored pickled with Protocol 5 in Python and the library pickleparser used for RedisInsight does not currently support Protocol 5.
https://github.com/ewfian/pickleparser/blob/main/SUPPORTED_OPCODES.md

[GnaneshKunal]

Hey @rad-pat,

You are right with it. The library we currently use doesn't support Pickle Protocol 5.

[ewfian]

Protocol 5 will be supported in https://github.com/ewfian/pickleparser/pull/4/files

[GnaneshKunal]

@YmaYeah and @rad-pat, the pickle parser library now supports pickle protocol 5. Can you please try out the views again?

[ViktarStarastsenka]

a new version (with support for pickle protocol 5) is not available right now, it will be released with 2.36 in 1-2 weeks.

[ViktarStarastsenka]

available with 2.36 (released today)