See issue 1580 for a description of the change that displays floats using the shortestish decimal expansion that round trips: https://bugs.python.org/issue1580

See issue 1580 for a description of the change that displays floats using the shortestish decimal expansion that round trips: https://bugs.python.org/issue1580 https://bugs.python.org/issue1580 I thought there was a PEP for it, but evidently not. Although this is generally an improvement, it can contribute to confusion.