1. Install Anaconda 3 (Can be downloaded here)
2. Create a new environment for running QISKit

conda create -n env_name python=3.6

Note that env_name is the name you given to this new environment. Here this line is to install the current latest version for python – version 3.6, and QISKit is only available with python 3.5 or later.

3. Activate the newly generated environment

conda activate env_name

4. Install QISKit package

pip install qiskit

QISKit is available on these platforms: Linux x86_64, Darwin and Win64.

5. Install Jupyter Notebook

pip install jupyter

6. Run Jupyter Notebook

jupyter notebook

Now we have finished all the installation. If you want to run QISKit locally, you can start the coding part now.
You can also use Qiskit to execute the code on a quantum chip. In order to do so, there is one last step left, which is to get an IBM Q token:

1. Create an IBM account if you do not have one.
2. Go to My Account > Advanced > API Token to get your token.
3. Copy your token and paste it below:

# If you want to execute your code on a quantum chip:
My_token = 'XXX' # Paste your token here
from qiskit import IBMQ
IBMQ.save_account(My_token)