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Python Data Analysis

You're reading from   Python Data Analysis Perform data collection, data processing, wrangling, visualization, and model building using Python

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Product type Paperback
Published in Feb 2021
Publisher Packt
ISBN-13 9781789955248
Length 478 pages
Edition 3rd Edition
Languages
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Authors (2):
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Ivan Idris Ivan Idris
Author Profile Icon Ivan Idris
Ivan Idris
Avinash Navlani Avinash Navlani
Author Profile Icon Avinash Navlani
Avinash Navlani
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Toc

Table of Contents (20) Chapters Close

Preface 1. Section 1: Foundation for Data Analysis
2. Getting Started with Python Libraries FREE CHAPTER 3. NumPy and pandas 4. Statistics 5. Linear Algebra 6. Section 2: Exploratory Data Analysis and Data Cleaning
7. Data Visualization 8. Retrieving, Processing, and Storing Data 9. Cleaning Messy Data 10. Signal Processing and Time Series 11. Section 3: Deep Dive into Machine Learning
12. Supervised Learning - Regression Analysis 13. Supervised Learning - Classification Techniques 14. Unsupervised Learning - PCA and Clustering 15. Section 4: NLP, Image Analytics, and Parallel Computing
16. Analyzing Textual Data 17. Analyzing Image Data 18. Parallel Computing Using Dask 19. Other Books You May Enjoy

Reading and writing data from Cassandra

Cassandra is scalable, highly available, durable, and fault-tolerant, has lower admin overhead, has faster read-write, and is a resilient column-oriented database. It is easier to learn and configure. It provides solutions for quite complex problems. It also supports replication across multiple data centers. Plenty of big companies, for example, Apple, eBay, and Netflix use Cassandra.

We can read and write data in Python from Cassandra using the cassandra-driver connector. For this connectivity purpose, we need to install Cassandra and cassandra-driver connectors. You can download Cassandra from its official website: http://cassandra.apache.org/download/. cassandra-driver is a pure Python Cassandra client library that can be installed using pip:

pip install cassandra-driver

Let's try database connectivity using cassandra-driver:

# Import the cluster
from cassandra.cluster import Cluster

# Creating a cluster object
cluster = Cluster()

# Create connections...
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