How to install numpy on windows using pip install?

Question

I want to install numpy using pip install numpy command but i get follwing error:

RuntimeError: Broken toolchain: cannot link a simple C program

I'm using windows 7 32bit, python 2.7.9, pip 6.1.1 and some MSVC compiler. I think it uses compiler from Visual C++ 2010 Express, but actually I'm not sure which one because I have several visual studio installations.

I know that there are prebuilt packages for windows but I want to figure out if there is some way to do it just by typing pip install numpy?

Edit: I think that there could be other packages which must be compiled before usage, so it's not only about numpy. I want to solve the problem with my compiler so I could easily install any other similar package without necessity to search for prebuilt packages (and hope that there are some at all)

Solution 1

Installing extension modules can be an issue with pip. This is why conda exists. conda is an open-source BSD-licensed cross-platform package manager. It can easily install NumPy.

Two options:

• Install Anaconda here
• Install Miniconda here and then go to a command-line and type conda install numpy (make sure your PATH includes the location conda was installed to).

Solution 2

Check installation of python 2.7 than install/reinstall pip which described here than open command line and write

pip install numpy

or

pip install scipy

if already installed try this

pip install -U numpy

Solution 3

Frustratingly the Numpy package published to PyPI won't install on most Windows computers https://github.com/numpy/numpy/issues/5479

Instead:

1. Download the Numpy wheel for your Python version from http://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy
2. Install it from the command line pip install numpy-1.10.2+mkl-cp35-none-win_amd64.whl

Solution 4

As of March 2016, pip install numpy works on Windows without a Fortran compiler. See here.

pip install scipy still tries to use a compiler.

July 2018: mojoken reports pip install scipy working on Windows without a Fortran compiler.

Solution 5

py -m pip install numpy

Worked for me!

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