BUG: str dtype ignored for column with '.' if thousands='.' for python engine

BUG: str dtype ignored for column with '.' if thousands='.' for python engine: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). Pandas version checks X I have checked that this issue has not already been reported. X I have confirmed this bug exists on the latest version of…