Source: lmfit-py Version: 1.3.3-5 Followup-For: Bug #1118038 Control: retitle -1 lmfit-py: tests fail: type int64 is not JSON serializable Looks like this bug is a new problem in unstable, not in scipy 1.16. lmfit-py is passing tests with scipy 1.16 in testing. Updating the bug title accordingly.