# Install NumPy, SciPy, Matplotlib with Python 3 on Windows

## Posted on February 25, 2017 by Paul

*Updated 21 April 2018*

This is a short tutorial about installing Python 3 with NumPy, SciPy and Matplotlib on Windows.

We’ll start by installing the latest stable version of Python 3, which at the time of this writing is 3.6. Head over to https://www.python.org/downloads/ and download the installer. The default Python Windows installer is 32 bits and this is what I will use in this article. If you need the 64 bits version of Python, check the *Looking for a specific release?* section from the above page.

Start the installer and select *Customize installation*. On the next screen leave all the optional features checked. Finally, on the *Advanced Options* screen make sure to check *Install for all users*, *Add Python to environment variables* and *Precompile standard library*. Optionally, you can customize the install location. I’ve used *C:\Python36*. You should see something like this:

Press the *Install* button and in a few minutes, depending on the speed of your computer, you should be ready. On the last page of the installer, you should also press the *Disable path length limit*:

Now, to check if Python was correctly installed, press and hold the *SHIFT* key and right click with your mouse somewhere on your desktop, select *Open command window here*. Alternatively, on Windows 10, use the bottom left search box to search for *cmd*.

Now, write *python* in the command window and press *Enter*, you should see something like this:

Next, download and install the Microsoft Visual C++ 2017 Redistributable. Be sure to select the version corresponding to your Python installer (32 or 64 bits).

Download the *NumPy* version corresponding to your Python installation from here. In my case, I’ve used *numpy‑1.14.2+mkl‑cp36‑cp36m‑win32.whl*

Download the *SciPy* version corresponding to your Python installation from here. In my case, I’ve used *scipy‑1.0.1‑cp36‑cp36m‑win32.whl*

Download the *Matplotlib* version corresponding to your Python installation from here. In my case, I’ve used *matplotlib‑2.2.2‑cp36‑cp36m‑win32.whl*

Now, open a *cmd* window like before. You can open this directly in your *Downloads* folder if you *SHIFT* and right click inside it. The idea is to open a *cmd* window where you’ve downloaded the above two files. Use the next set of commands to install *NumPy*, *SciPy* and *Matplotlib*:

```
1 pip install "numpy‑1.14.2+mkl‑cp36‑cp36m‑win32.whl"
2 pip install "scipy‑1.0.1‑cp36‑cp36m‑win32.whl"
3 pip install "matplotlib‑2.2.2‑cp36‑cp36m‑win32.whl"
```

After each of the above commands you should see *Successfully installed …*.

Launch Python from a cmd window and check the version of Scipy, you should see something like this:

```
1 C:\Users\X\Downloads>python
2 Python 3.6.5 (v3.6.5:f59c0932b4, Mar 28 2018, 16:07:46) [MSC v.1900 32 bit (Intel)] on win32
3 Type "help", "copyright", "credits" or "license" for more information.
4 >>> import scipy as sp
5 >>> sp.version.version
6 '1.0.1'
7 >>>
```

Let’s try something a bit more interesting now, let’s plot a simple function with *Matplotlib*. First, we’ll import *SciPy* and *Matplotlib* with:

```
1 import scipy as sp
2 import matplotlib.pylab as plt
```

Next, we can define some points on the (0, 1) interval with:

```
1 t = sp.linspace(0, 1, 100)
```

Now, let’s plot a parabola defined by the above interval:

```
1 plt.plot(t, t**2)
2 plt.show()
```

You should see something like this:

If you want to learn more about Python and Matplotlib, I recommend reading Python Crash Course by Eric Matthes. The book is intended for beginners, but has a nice *Data Visualization* intro to *Matplotlib* chapter:

Another good Python book, for more advanced users, which also uses *Matplotlib* for some of the book projects is Python Playground by Mahesh Venkitachalam: