BUG: Set type check is too strict when creating Series from dict keys

BUG: Set type check is too strict when creating Series from dict keys: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). x I have checked that this issue has not already been reported. x I have confirmed this bug exists on the latest version of pandas. (optional) I have…

The task

[x] I have checked that this issue has not already been reported. [x] I have confirmed this bug exists on the latest version of pandas. [ ] (optional) I have confirmed this bug exists on the master branch of pandas. --- Code Sample, a copy-pastable example Problem description…

Part of XiaomiMiMo/MiMo-V2.6-RL-oss.