In the cPython repository, there is an unparse module in the Tools section. https://github.com/python/cpython/blob/master/Tools/parser/unparse.py However, as it is not part of the standard library, it cannot be easily used; to do so, one needs to make a local copy in a place from where it can be imported. This module can be useful for people using the ast module to create and parse trees, modify them ... and who want to convert the result back into source code. Since it is obviously maintained to be compatible with the current Python version, would it be possible to include the unparse module in the standard library? André Roberge