>From https://pypi.org/project/PyQt5-sip/#files, it looks like the project only distributes wheels (no source archive). You don't say what platform you're using, but if it's Linux, the fact that you have a debug Python probably means you need a different ABI, so the standard wheels that they provide aren't compatible. So if there's no compatible wheel and no source, there's nothing that can be installed.
pip install -v pyqt5 might give you some more information about why the files available are not being considered as suitable, but I think the above is likely. Paul On Fri, 12 Apr 2019 at 06:44, dieter <die...@handshake.de> wrote: > > Vincent Vande Vyvre <vincent.vande.vy...@telenet.be> writes: > > ... > > Using Python-3.7.2 (compiled with --with-pydebug) in a venv, I've > > encountered this problem: > > > > $ pip install --upgrade pip setuptools wheel > > .... > > Successfully installed setuptools-41.0.0 wheel-0.33.1 > > ------------------------------- > > ... > > $ pip install pyqt5 > > ... > > Collecting PyQt5_sip<4.20,>=4.19.14 (from pyqt5) > > Could not find a version that satisfies the requirement > > PyQt5_sip<4.20,>=4.19.14 (from pyqt5) (from versions: ) > > No matching distribution found for PyQt5_sip<4.20,>=4.19.14 (from pyqt5) > > ... > > $ pip search pyqt5 > > ... > > PyQt5-sip (4.19.15) - Python extension module support > > There is a spelling difference: "PyQt5_sip" versus "PyQt5-sip" -- > not sure, however, whether this is important. > > -- > https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list