On 18 May 2015 at 14:32, David Cournapeau <courn...@gmail.com> wrote: > On Mon, May 18, 2015 at 9:05 AM, Nick Coghlan <ncogh...@gmail.com> wrote: >> Indirection via pip injects the usage of setuptools even for plain >> distutils projects, and generates https://www.python.org/dev/peps/pep-0376/ >> compliant metadata by default. > > > Note that some packages will push hard against injecting setuptools, at > least until it does not offer a way to prevent from installing as an egg > directory. Most of the core scientific packages avoid setuptools because of > this.
pip changes the default behaviour of setuptools to be more in line with the behaviour of plain distutils (e.g. forcing "--single-version-externally-managed"). This means that "pip install X" consistently gives setuptools levels of capabilities in terms of dependency management, without defaulting to installing things as egg archives or directories (modulo the rough edges around setup-requires). As Donald notes, "pip install" also abstracts away any future invocation of a metadata based pluggable build system, while "./setup.py install" assumes the distutils-based status quo will remain in place forever. Cheers, Nick. -- Nick Coghlan | ncogh...@gmail.com | Brisbane, Australia _______________________________________________ Distutils-SIG maillist - Distutils-SIG@python.org https://mail.python.org/mailman/listinfo/distutils-sig
