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Debugging and Profiling Python Scripts

Debugging and profiling play an important role in Python development. The debugger helps programmers to analyze the complete code. The debugger sets the breakpoints whereas the profilers run our code and give us the details of the execution time. The profilers will identify the bottlenecks in your programs. In this chapter, we'll learn about the pdb Python debugger, cProfile module, and timeit module to time the execution of Python code.

In this chapter, you'll learn about the following:

Python debugging techniques
Error handling (exception handling)
Debugger tools
Debugging basic program crashes
Profiling and timing programs
Making programs run faster

Key benefits

Learn how to solve problems of system administrators and automate routine activities

Learn to handle regular expressions, network administration

Building GUI, web-scraping and database administration including data analytics

Description

Python has evolved over time and extended its features in relation to every possible IT operation. Python is simple to learn, yet has powerful libraries that can be used to build powerful Python scripts for solving real-world problems and automating administrators' routine activities. The objective of this book is to walk through a series of projects that will teach readers Python scripting with each project. This book will initially cover Python installation and quickly revise basic to advanced programming fundamentals. The book will then focus on the development process as a whole, from setup to planning to building different tools. It will include IT administrators' routine activities (text processing, regular expressions, file archiving, and encryption), network administration (socket programming, email handling, the remote controlling of devices using telnet/ssh, and protocols such as SNMP/DHCP), building graphical user interface, working with websites (Apache log file processing, SOAP and REST APIs communication, and web scraping), and database administration (MySQL and similar database data administration, data analytics, and reporting). By the end of this book, you will be able to use the latest features of Python and be able to build powerful tools that will solve challenging, real-world tasks

What you will learn

Understand how to install Python and debug Python scripts

Understand and write scripts for automating testing and routine administrative activities

Understand how to write scripts for text processing, encryption, decryption, and archiving

Handle files, such as pdf, excel, csv, and txt files, and generate reports

Write scripts for remote network administration, including handling emails

Build interactive tools using a graphical user interface

Handle Apache log files, SOAP and REST APIs communication

Automate database administration and perform statistical analysis

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