C++ compiler error while trying to install python datatable

Question

I am trying to install 'datatable' for python using 'pip' as below, but I am getting error.

pip install datatable

Error shown is:

Find an LLVM installation
  Environment variable LLVM is not set
  Environment variable LLVM7 is not set
  Environment variable LLVM6 is not set
  Environment variable LLVM5 is not set
  Environment variable LLVM4 is not set
  Candidate directory `/usr/local/opt/llvm` not found
  The build will proceed without Llvm support

Determine the compiler
  Environment variable `CXX` is not set
  Environment variable `CC` is not set
  Llvm installation not found, cannot search for the clang++ compiler
  'compiler_cxx'
  Compiler `clang++.exe` is not found
  Compiler `gcc.exe` is not found

Prepare the environment

SystemExit: Suitable C++ compiler cannot be determined. Please specify a compiler executable in the `CXX` environment variable.

I even re-installed VC++ Compiler for Python and also updated:

pip install --upgrade setuptools

setuptoools isn't VC++ Compiler, you must install it by yourself — Sav, Jul 01 '19 at 10:34
@Sav I installed VC++ for python separately and later Setuptools. — RKh, Jul 01 '19 at 10:41
You need to install a C compiler like GCC or clang. You might be able to set one of the environment variables required to point to the VC++ compiler binary as a hack. — absolutelydevastated, Jul 01 '19 at 10:45
I'll suggest installing Visual Studio Build Tools `https://download.visualstudio.microsoft.com/download/pr/52b8cab2-8750-444d-a860-a2e03a891236/554086c6109c4ab6362ef76c76227ec0/vs_buildtools.exe` `https://visualstudio.microsoft.com/downloads/` — Talha Junaid, Jul 01 '19 at 10:46
Please read the fine manual (https://datatable.readthedocs.io/en/latest/install.html#install-on-windows): "Currently datatable does not work on Windows" — bruno desthuilliers, Jul 01 '19 at 11:05
Thanks all. Please post as answers so that I can Accept one. — RKh, Jul 01 '19 at 11:20
@brunodesthuilliers Thanks for that. Please post as answer so that I can mark it. — RKh, Jul 01 '19 at 11:21

score -1 · Answer 1 · answered May 23 '20 at 19:26

If you are on Windows, then datatable will be installable directly via pip starting from version 0.11. Right now it is possible to install the development snapshots of the library by following the instructions at https://datatable.readthedocs.io/en/latest/install.html#install-on-windows.

C++ compiler error while trying to install python datatable

1 Answers1