There are two ways in which you can install scikit-learn on your personal device:

• By using the pip method
• By using the Anaconda method

The pip method can be implemented on the macOS/Linux Terminal or the Windows PowerShell, while the Anaconda method will work with the Anaconda prompt.

Choosing between these two methods of installation is pretty straightforward:

• If you would like all the common Python package distributions for data science to be installed in one environment, the Anaconda method works best
• If you would like to build you own environment from scratch for scikit-learn, the pip method works best (for advanced users of Python)

Scikit-learn requires a few packages to be installed on your device before you can install it. These are as follows:

• NumPy: Version 1.8.2 or greater
• SciPy: Version 0.13.3 or greater

These can be installed using the pip method by using the following commands:

pip3 install NumPy
pip3 install SciPy

Next, we can install scikit-learn using the following code:

pip3 install scikit-learn

Additionally, if you already have scikit-learn installed on your device and you simply want to upgrade it to the latest version, you can use the following code:

pip3 install -U scikit-learn

In the event that you have installed Python using the Anaconda distribution, you can install scikit-learn by using the following code in the Anaconda prompt:

The first step is to install the dependencies:

conda install NumPy
conda install SciPy

Next, we can install scikit-learn by using the following code:

conda install scikit-learn

Additionally, if you already have scikit-learn installed with the Anaconda distribution, you can upgrade it to the latest version by using the following code in the Anaconda prompt:

conda update scikit-learn

In this section, we will talk about the packages that we will be installing outside of scikit-learn that will be used throughout this book.

To install Pandas, you can use either the pip method or the Anaconda method, as follows:

Pip method:

pip3 install pandas

Anaconda method:

conda install pandas

To install matplotlib, you can use either the pip method or the Anaconda method, as follows:

Pip method:

pip3 install matplotlib

Anaconda method:

conda install matplotlib

To install tree, you can use either the pip method or the Anaconda method, as follows:

Pip method:

pip3 install tree

Anaconda method:

conda install tree

To install pydotplus, you can use either the pip method or the Anaconda method, as follows:

Pip method:

pip3 install pydotplus

Anaconda method:

conda install pydotplus

To install Image, you can use either the pip method or the Anaconda method, as follows:

Pip method:

pip3 install Image

Anaconda method:

conda install Image