I am happy to announce Guppy 3 3.0.9 Guppy 3 is a library and programming environment for Python, currently providing in particular the Heapy subsystem, which supports object and heap memory sizing, profiling and debugging. It also includes a prototypical specification language, the Guppy Specification Language (GSL), which can be used to formally specify aspects of Python programs and generate tests and documentation from a common source. Guppy 3 is a fork of Guppy-PE, created by Sverker Nilsson for Python 2. The main news in this release: o Python 3.8 support o Guppy internals are again properly hidden from heap traversal o Collapse Glue.py exception tracebacks o Workaround multi-interpreter initialization with tracemalloc so we don't deadlock License: MIT The project homepage is on GitHub: https://github.com/zhuyifei1999/guppy3 Enjoy, YiFei Zhu