The most widely used Python package is matplotlib. To find all its functions, we could issue the following three lines:
import matplotlib as mat x=dir(mat) print(x)
The output is shown here:

To find out about all Python packages associated with data visualization, we can go to https://pypi.python.org. The following table shows the first several packages when we search data visualization, where W is the weight (in terms of popularity):
Package
|
W
|
Description
|
11 |
Python bindings for the Qt Data Visualization library |
|
10 |
A data analysis and visualization helper module |
|
10 |
Data environment is for data analysis, visualization, and management |
|
10 |
Utilities to swim in a data lake |
|
9 |
Data visualization tool... |