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user1477388
user1477388

Reputation: 21440

Using NumPy in Visual Studio

I downloaded http://pytools.codeplex.com/ (Python Tools for Visual Studio) so that I could write Python in Visual Studio.

The problem is when I try to use the most basic package "numpy" like so:

import numpy

It says "No module named 'numpy'."

How can I use NumPy and SciPy in Visual Studio?

Note: I am using Canopy Express on another machine which works perfectly; however, I don't want to install it on this machine since I already have Visual Studio installed.

I added the Python 3.3 environment to my Python "solution" by right-clicking Python environments and clicking add an environment. But, after right-clicking my environment and clicking install Python package, I typed in "numpy" and got this error when trying to install it:

...
creating build
creating build\src.win32-3.3
creating build\src.win32-3.3\numpy
creating build\src.win32-3.3\numpy\distutils
building library "npymath" sources
No module named 'numpy.distutils.msvccompiler' in numpy.distutils; trying from distutils
error: Unable to find vcvarsall.bat
----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in c:\users\dom\appdata\local\temp\pip_build_Dom\numpy
Storing complete log in C:\Users\Dom\pip\pip.log
'numpy' failed to install. Exit code: 1

How can I install NumPy?

Upvotes: 21

Views: 104407

Answers (8)

Ola Ström
Ola Ström

Reputation: 5331

In Visual Studio 2022 just use the "Solution Explorer" to install NumPy.

  • Expand the Project and then expand the Python Environments
  • Right click on the Python installation and choose "Manage Python Packages..."

Solution Explorer

  • Type "numpy" in the search field
  • Click on "Run command: pip install numpy"

Python Environment

Now NumPy should be installed on the Visual Studio Python environment!

Note that if the chosen Python environment is:

  • "Python 3.XX (global default)"
    Then NumPy will be installed on your default Visual Studio Python environment,
  • NOT the (global default)
    Then NumPy will JUST be installed on your current project.

Upvotes: 6

Roland Smith
Roland Smith

Reputation: 43543

Consider using a more feature-rich Windows distribution of Python, like Anaconda. It comes with a boatload of packages included into the installer. This is quite handy for those who are new to Python, especially when they are using Windows.

Edit:

As of 2020, I would suggest using the python.org distribution of Python. Compiler issues on ms-windows have finally been fixed, so a lot of projects now provide binary packages (wheels) for ms-windows. Among others numpy, pandas, matplotlib, pillow, Cython and PyNaCl.

Note that wheel names ending in:

  • win_amd64.whl are for 64-bit versions of ms-windows, and
  • win32.whl are for 32-bit.

Upvotes: 3

Charles Clayton
Charles Clayton

Reputation: 17976

From PTVS Installation:

2. Installing packages individually

Here are some recommended packages. Generally you want to install packages using pip or through the interface in Visual Studio (which uses pip), as this will ensure that you get the latest version that will work with your version of Python, as well as any dependencies.

Some packages have complex dependencies and need to be downloaded manually, either from the project's website or from Christoph Gohlke's package collection.

I installed numpy and scipy from these links, and it works perfectly with Visual Studio.

Upvotes: 1

omedahunsi
omedahunsi

Reputation: 11

See under Extra in the Visual Studio (Extra-Python-Interactive Window).

It has the ability to switch the interactive console through a different platform/Python version (32-bit, 64-bit, Debug, and Anaconda (which has the NumPy package)).

Upvotes: 1

Kyle
Kyle

Reputation: 51

Two solutions worked for me:

  1. Going directly to my Python folder and installing the packages using pip.
  2. Creating a virtual environment in my project and installing packages from within Visual Studio.

Upvotes: 5

Daniel
Daniel

Reputation: 1418

In Visual Studio 2013 Community Edition with a Python 2.7 environment, the following worked for me:

Open the Python Environments menu in Solution Explorer, and click on "Install Python Package..."

Then write "numpy":

Upvotes: 36

Bohdan
Bohdan

Reputation: 2047

Make sure C++ Common Tools are installed in Visual Studio:

Visual Studio 2015 Setup

Upvotes: 2

Thusi
Thusi

Reputation: 928

I actually ran into the same set of problems when trying to use Visual Studio for Python.

I managed to get things to work at the end - please see Using Visual Studio 2013 for Python (3.4) with NumPy and SciPy on Windows for details. Essentially you can either use the installer (if one is available) or use pip to do the installation.

Upvotes: 2

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