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Hands-On Penetration Testing with Python

You're reading from   Hands-On Penetration Testing with Python Enhance your ethical hacking skills to build automated and intelligent systems

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Product type Paperback
Published in Jan 2019
Publisher Packt
ISBN-13 9781788990820
Length 502 pages
Edition 1st Edition
Languages
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Author (1):
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Furqan Khan Furqan Khan
Author Profile Icon Furqan Khan
Furqan Khan
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Toc

Table of Contents (18) Chapters Close

Preface 1. Introduction to Python 2. Building Python Scripts FREE CHAPTER 3. Concept Handling 4. Advanced Python Modules 5. Vulnerability Scanner Python - Part 1 6. Vulnerability Scanner Python - Part 2 7. Machine Learning and Cybersecurity 8. Automating Web Application Scanning - Part 1 9. Automated Web Application Scanning - Part 2 10. Building a Custom Crawler 11. Reverse Engineering Linux Applications 12. Reverse Engineering Windows Applications 13. Exploit Development 14. Cyber Threat Intelligence 15. Other Wonders of Python 16. Assessments 17. Other Books You May Enjoy

Python operators

An operator in Python is something that can carry out arithmetic or logical operations on an expression. The variable on which the operator operates is called the operand. Let's try to understand the various operators that are available in Python:

  • Arithmetic:
Functions Example
Addition a + b
Subtraction a - b
Negation -a
Multiplication a * b
Division a / b
Modulo a % b
Exponentiation a ** b
Floor Division a // b
  • Assignment:
    • a = 0 evaluates to a=0
    • a +=1 evaluates to a = a + 1
    • a -= 1 evaluates to a = a + 1
    • a *= 2 evaluates to a = a * 2
    • a /= 5 evaluates to a = a / 5
    • a **= 3 evaluates to a = a ** 3
    • a //= 2 evaluates to a= a // 2 (floor division 2)
    • a %= 5 evaluates to a= a % 5
  • Logical operators:
    • and: True: If both the operands are true, then the condition becomes true. For example, (a and b) is true.
    • or: True: If any of the two operands are non-zero, then the condition becomes true. For example, (a or b) is true.
    • not: True: This is used to reverse the logical state of its operand. For example, not (a and b) is false.
  • Bitwise operators:
Functions Example
and a & b
or a | b
xor a ^ b
invert ~ a
Right Shift a >> b
Left Shift a << b
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