GMPY2 doesn't install

python install gmpy2 windows
python gmpy2 install error
pip install gmpy error
modulenotfounderror: no module named 'gmpy2'
install gmpy2 kali linux
gmpy2 2.0 8
gmpy2 from_binary
error: failed building wheel for gmpy2

EDIT: I'm using Win 10 and Ubuntu from the app store

I have tried to install gmpy2 by using:

apt-get install libgmp-dev
apt-get install libmpfr-dev
apt-get install libmpc-dev

and also downloaded MPIR and compiled it. however using pip install gmpy2 still gives me the error

c:\users\gypsyzz\appdata\local\temp\pip-install-l2hlf7q4\gmpy2\src\gmpy.h(104): fatal error C1083: Cannot open include file: 'mpir.h': No such file or directory
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\BuildTools\\VC\\Tools\\MSVC\\14.13.26128\\bin\\HostX86\\x64\\cl.exe' failed with exit status 2

in addition, i found that using the prebuilt wheel at https://www.lfd.uci.edu/~gohlke/pythonlibs/ does not give me any functions.

import gmpy2
from gmpy2 import mpz,mpq,mpfr,mpc
gmpy2.conjugate(mpc())
Traceback (most recent call last):

File "<ipython-input-18-2d51a42bda9a>", line 1, in <module>
gmpy2.conjugate(mpc())

AttributeError: module 'gmpy2' has no attribute 'conjugate'

I'm more certain that I have understood the functions wrongly for the last part, so please let me know the correct syntax.

This is a bug in gmpy2 2.0.x series. It has been fixed in the currently development version. gmpy2 2.1.0a2 is available on PyPi but is hidden. The following commands will install it in a user-specific directory. Python will load modules from the user-specific directory first so the new version will shadow the provided version.

sudo apt install libmpc-dev
sudo apt install python3-pip
pip3 install --user gmpy2==2.1.0a2

The new version should be backwards compatible with the old version. But if you encounter any issues, you can remove the user-specific version as follows.

pip3 uninstall gmpy2==2.1.0a2

Introduction to gmpy2, The gmpy module only supported the GMP multiple-precision library. gmpy2 adds The function inverse() now raises an exception if the inverse does not exist. The module Matrices in SymPy doesn't support type mpq from gmpy2. #16883. adukova opened this issue May 24, 2019 · 12 comments Labels. matrices. Comments.

For me this worked:-

apt-get install libgmp3-dev (For Ubuntu, might vary for linux distro)

pip3 install gmpy --user

Multiple-precision Integers, The use of from gmpy2 import * is not recommended. The names in gmpy2 have been chosen to avoid conflict with Python's builtin names but gmpy2 does use  gmpy2 is a C-coded Python extension module that supports multiple-precision arithmetic. gmpy2 is the successor to the original gmpy module. The gmpy module only supported the GMP multiple-precision library.

If you have Anaconda installed on your system, then the simplest way of installing it would be using conda itself which will take care of all the dependencies that gmpy2 needs. The command is: conda install gmpy2

Changes for gmpy2 releases, It is no longer possible to build a version of gmpy2 that only supports the GMP library. The function inverse() now raises an exception if the inverse does not exist. integer_nthroot is used whenever a rational number is raised to a rational power (automatic canonicalization), so that should speed things up as well for certain types of expressions. For me gmpy2.mpz doesn't have root. gmpy2.root exists, which always returns an mpfr (meaning if the root is too large it will be truncated).

[PDF] gmpy2 Documentation, The gmpy module only supported the GMP multiple-precision library. conflict with Python's builtin names but gmpy2 does use names that  setuptools doesn't find libraries under /opt/local/include #185. Open In any case, this is not a gmpy2 issue but a distutils/setuptools issue.

gmpy2 problem, Replying to the list since I have absolutely no idea about gmpy2 or pip. with gmpy2 module installation - pip install gmpy2 >>> doesn't work  I maintain gmpy and gmpy2. @cartman and @DJV already directed you to the source code but I'll add a few comments. mpz_probab_prime_p does trial factoring and then multiple iterations of the Miller-Rabin test. The Miller-Rabin test doesn't prove that a number is prime, it is just very good at proving that a number is composite.

gmpy - Google Code Archive, 71, Done, gmpy windows installer does not recognize enthought python 53, Invalid, Doesn't install via PyPI on 64 bit system Type-Defect Priority-Low. scipy-0.15.1-cp34-none-win_amd64.whl is not a supported wheel on this platform. Computing, technology, general information.

Comments
  • You seem to be mixing up linux and windows...
  • @MarcGlisse Yes there's some mixing up. In Win 10 you can open ubuntu (not virtual client) with app store, and have an command prompt interface. I'm not sure how much of the software installations are shared to windows. I have an Ubuntu setup alongside now seeing how frustrating the situation is.
  • No software is shared between ubuntu and windows. If you install GMP on linux, it is useless to python on windows.
  • well then that explains, I'll stick to ubuntu for work then.
  • And conjugate() is a method of the mpc type; not a function of the gmpy2 module. The following should work: gmpy2.mpc("1+2j").conjugate()