There are various library packages available for Python language. The following are the most popular out of them. Numpy [Numerical Python] - used for manipulation of homogenous array based data. - used for efficient storage and manipulation of dense data arrays ( ndarray ) Usage: import numpy as np Pandas [Panel Data] - used for manipulation of heterogenous and labelled data - used for efficient storage and manipulation of labelled or Columned data ( DataFrame ) Usage: import pandas as pd SciPy [Scientific Python] - used for scientific computational tasks Usage from scipy import linalg (linalg - Linear Algebra) Matplotlib [Mathematic Plotting Library] - used for quality data visualization Usage import matplotlib.pypot as plt Seaborn library also used for data visualization. Usage ...