Add `simplejson` as an optional extra

[beltekylevi]

Would you be open to adding simplejson as an optional extra?
This would allow users to install it via poetry add requests[simplejson]. Having it as an official extra would make the dependency relationship explicit.

[sigmavirus24]

Support for it is purely historical. An optional extra would be something I would consider if we wanted to give folks a nudge to consider using it which isn't our position as a project. Also we don't actively test against it so support is barely best effort

[stoiet]

@sigmavirus24 It is not an explicit dependency of requestslibrary, so probably people don't even know about it. If someone removes the simplejson package blindly from their project (because it is not used anywhere explicitly), it can cause requests to fail with JSON serialisation errors. (Decimal serialisation, for example).

I think there are 2 ways to resolve this:

• keep the simplejson as a dependency, but as an explicit extra (staying backward compatible)
• remove it from the requests library as a breaking change

[sigmavirus24]

You're missing the third way:

Change nothing because folks aren't sanitizing days that they're sending properly and that's a bug in their systems

[Lohith625]

Hi, I’m interested in working on this. If maintainers are okay with having simplejson as an optional extra, I can prepare a PR adding it along with documentation updates.