Numpy Installation For Python Ver-3.9

I'm trying to install NumPy but I'm facing an issue. The python ver I'm using is 3.9 and Windows version is 10. The error is as follows: C:>pip3 install numpy Collecting numpy U

Solution 1:

The numpy package does not yet include binaries for Python 3.9, so pip tries to compile from source. This (of course) requires you to have the appropriate C compiler, as the error message says. That is not straightforward. pip wants Visual C++ 14.2. The only version readily available from Microsoft is Visual C++ 2019, a.k.a. version 16, which won't work with pip. You can get Visual C++ 2015, a.k.a version 14, from https://visualstudio.microsoft.com/vs/older-downloads/. But it appears that only the latest version is free. You may have to pay for an older version. Even then, having the compiler isn't enough. You have to configure it, and that is not for the faint-hearted.

Instead, download a prepackaged binary wheel from Christoph Gohlke's site at https://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy. The official scipy.org docs recommend this site. Obviously you must choose the .whl file that matches your system.

Install the wheel using pip like this:

pip install D:\Users\<user>\Downloads\numpy-1.19.2+mkl-cp39-cp39-win_amd64.whl

Solution 2:

last lines says:

"error: Microsoft Visual C++ 14.0 is required. Get it with "Build Tools for Visual Studio": https://visualstudio.microsoft.com/downloads/"

Do you have msvc 14 ?