TypeError json.encoder in default instead of real error, using sentry-sdk python

Environment

SaaS (https://sentry.io/)

Version

No response

Steps to Reproduce

1. have an URL triggering an error that contains special chars, for example an “!”
2. in sentry, I’ll get a strange TypeError json.encoder in default
3. with an epic long stacktrace, that goes through all my django middlewares and more
4. using gunicorn. not sure if on my side something is configured wrong? as far as I can see, I use a very basic default configuration

python sentry-sdk: 1.4.2

    sentry_sdk.init(
        dsn=SENTRY_DSN,
        release=VERSION,
        integrations=[DjangoIntegration()],
    )

Expected Result

Report AttributeError 'NoneType' object has no attribute 'url_name' as is the orginal error in this case.

Actual Result

TypeError json.encoder in default

the (probably) payload, that is wanted to be json serialized:

{
environment: 'production', 
public_key: 'blbalbalbablaFOOOOO, 
release: b'0.0.1-178-g889a3c7', 
trace_id: 'the-trace-id', 
transaction: '/medien/Pressedossier_PENG!_PALAST.pdf'
}

[ibushong]

@benzkji, I had the same issue, with this same apparent cause. Your release argument to init() is of type bytes. You should add decode() after it to convert it to a string. That resolved the issue for me. Though it is interesting that this only happened as of v1.4.0

[benzkji]

a link like this: https://sentry.io/organizations/bnzk/issues/2681863712/?project=5803770&query=is%3Aunresolved