Thanks for reporting. I'm a bit confused to the issue. Though I am not familiar with gmpy, it looks like there are two versions of it available in Ubuntu, gmpy and gmpy2. While the former doesn't have a python3 package, the latter one does and this seems to be the maintained version too. That would be installable through `sudo apt install python3-gmpy2` (https://packages.ubuntu.com/bionic/python3-gmpy2).
If for some reason the Ubuntu package doesn't fit or you really need to use the older gmpy version in combination with Python3 i suppose that might be why the script attempt to install via pip3 instead of apt. Based on the error message: In file included from src/gmpy.c:251:0: src/gmpy.h:30:10: fatal error: gmp.h: No such file or directory #include "gmp.h" ^~~~~~~ compilation terminated. error: command 'x86_64-linux-gnu-gcc' failed with exit status 1 it looks like it was fetched, but failed to compile while installing. Some python packages contain C/C++ code to speed up certain parts and looks like this is one of them. It might be missing some build dependencies, which perhaps `sudo apt build-dep python-gmpy` (for gmpy1) or `sudo apt build-dep python-gmpy2` (for gmpy2, though in that case it is probably easier to use the existing python3-gmpy2 package as described above) ** Changed in: python3-defaults (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to python3-defaults in Ubuntu. https://bugs.launchpad.net/bugs/1804910 Title: pip3 cannot install gmpy Status in python3-defaults package in Ubuntu: Incomplete Bug description: I'm using python3 and want gmpy. Attempts to install it fail. I routinely capture the output of maintenance tasks, and am attaching the results. This output begins with the text of the shell script I wrote to do this, which includes calls to the bash functions I wrote to do this self-referential magic. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: python3 3.6.7-1~18.04 ProcVersionSignature: Ubuntu 4.15.0-39.42-generic 4.15.18 Uname: Linux 4.15.0-39-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 Date: Fri Nov 23 17:44:44 2018 InstallationDate: Installed on 2018-10-18 (36 days ago) InstallationMedia: Xubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) SourcePackage: python3-defaults UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/python3-defaults/+bug/1804910/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp