Our Services : Video Editing Classes, Ethical Hacking Workshop, Computer Classes, PC/Laptop Repair, Routers Sell, UPS Sell, Printers Sell, Scanners Sell, Website Development, APP Development, Computer Components
Call : 9846618997 | Newroad Pokhara

Python Programming for Hackers. PT 2 – All About Variables and Arithmetic Expressions – By Bijay Acharya

Welcome again to Python Programming for Hackers. This is Part 2. In this part, we’ll see some information on Python 2 and Python 3. We’ll see video links on printing “Hello World,” Arithmetic Expressions and Variables in Python.

  • There are two major Python versions, Python 2 and Python 3. Python 2 and 3 are quite different. This tutorial uses Python 2, because it’s more widely used and supported. However, Python 3 is more semantically correct, and supports newer features. As I said, this tutorial uses Python 2, but in some cases we’ll work with Python 3.
  • One difference between Python 2 and 3 is the “print” statement. In Python 2, the “print” statement is not a function, and therefore it’s invoked without parentheses. However, in Python 3, it’s a function, and must be invoked with parentheses.

ct 2 bj

Let’s take a look:

1) Printing Hello World – You’ll get the chance to learn about how to print ‘Hello World’ in Python Shell, which is presented in video below. The lab involves Kali Linux Python Shell. Video link:http://youtu.be/LaeJhuDtKCU

2) Arithmetic Expressions – Numbers, Operators and Expressions will be explained in the video below. # Numbers – 2 types – Integers (1,3,-6…) & Decimals (1.0,2.3,-7.2…) # Datatype for integer is int() & for decimal is float() . . .Video link: http://youtu.be/_PAIuw1b08E

3) Variables – A Variable is a placeholder for storing values.

– Once we store values in variable, it helps in avoiding recomputing of same values.
– Assigning variables also helps reader to understand codes.
– Valid variable name consist of: letters, numbers, underscore
– Starts with letter or underscore
– Legal names : hacker, Ethical, h_a_c_k
– Illegal names: 333hacking, 1234
– While assigning value to variable, we use equal to (=) sign.
– Remember, double (= =) equal to sign is used to test equality.

READ  C++ Programming - Pt.1 : Basics & Hello World /w Video

Video link: http://youtu.be/7RTDk9d15a8

I hope you enjoy the training videos. Thanks for reading and watching 🙂

Post is also featured on CYBRARY.IT HERE


student video tutorial, python programming for hackers, python for hackers, python tutorial, python programming nepali, python ethical hacker, python programming  hacking, bijay acharya

Related Post

Leave a Reply

Your email address will not be published. Required fields are marked *