Book Image

Python Automation Cookbook - Second Edition

By : Jaime Buelta
Book Image

Python Automation Cookbook - Second Edition

By: Jaime Buelta

Overview of this book

In this updated and extended version of Python Automation Cookbook, each chapter now comprises the newest recipes and is revised to align with Python 3.8 and higher. The book includes three new chapters that focus on using Python for test automation, machine learning projects, and for working with messy data. This edition will enable you to develop a sharp understanding of the fundamentals required to automate business processes through real-world tasks, such as developing your first web scraping application, analyzing information to generate spreadsheet reports with graphs, and communicating with automatically generated emails. Once you grasp the basics, you will acquire the practical knowledge to create stunning graphs and charts using Matplotlib, generate rich graphics with relevant information, automate marketing campaigns, build machine learning projects, and execute debugging techniques. By the end of this book, you will be proficient in identifying monotonous tasks and resolving process inefficiencies to produce superior and reliable systems.
Table of Contents (16 chapters)
14
Other Books You May Enjoy
15
Index

Reading log files

Another common structured text file format is log files. Log files consist of rows of logs, which are a line of text with a particular format, describing an event.

Logs are structured only in the same file or type of file. Formats can be very different and there's no common structure or syntax for them. Each application can and will use a different format.

Typically, each one will have a time when the event occurred, so the file is an ordered collection of them.

Getting ready

The example_log.log file containing five sales logs can be obtained from the GitHub repository here: https://github.com/PacktPublishing/Python-Automation-Cookbook-Second-Edition/blob/master/Chapter04/documents/example_logs.log.

The format is:

[<Timestamp in iso format>] - SALE - PRODUCT: <product id> - PRICE: $<price of the sale>

We'll use the Chapter01/price_log.py file to process each log into an object. There's a copy...