Public bug reported: On a pretty fresh Ubuntu 16.04, I'm installing some Python packages with pip (as a user). (pip version is 8.1.1). My example package is ipython. The command:
$ pip install ipython generates a bunch of downloads, including some packages that I previously installed with aptitude (ex : python-pygments). But it's not just about .deb Python package, it's also about the pip installed packages. Indeed, if I run again: $ pip install ipython then the installation is performed again (only difference: the cache of wheel files is being used). Obviously pip doesn't recognize the packages already installed (or maybe the end of the installation process failed ?). On the other hand, there is no visible problem with ipython installation: it seems to run fine. I don't remember having done many tweaks to my Ubuntu (it's a quite fresh VM) that could explain this broken behavior in the detection of dependencies. I've only added .local/bin to my PATH so that the ipython command runs properly (I indeed got bitten by the issued predicted by Donald Stufft in https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=725848). Also, among the "exotic" Python packages, I have python-omniorb. here are my PATH and Python module path variables: $ echo $PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/modelica/.local/bin $ python -c "import sys; print sys.path" ['', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/home/modelica/.local/lib/python2.7/site-packages', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PILcompat', '/usr/lib/python2.7/dist-packages/omniORB/COS', '/usr/lib/python2.7/dist-packages/gtk-2.0'] (notice: I've reported similar behavior as a question at http://askubuntu.com/questions/828642/pip-doesnt-know-of-apt-get- installed-packages but didn't get that much feedback, except that pip should be upgraded to 8.1.2, but I don't feel comfortable upgrading pip with a broken pip...) ** Affects: python-pip (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1628432 Title: pip user install doesn't know of previously installed package To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/python-pip/+bug/1628432/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
