Python for Placements

Explore Python variable naming rules: start with a letter or underscore, don't start with numbers or special characters, avoid keywords, and remember that names are case sensitive.

This lecture explains Python data types—integers, floats, strings, and booleans—showing how values like 5 and 5.8 map to int and float, and how type() reveals their types.

Explore how Python's arithmetic operators perform numeric calculations, including addition, subtraction, multiplication, quotient and remainder with float division, and floor division, illustrated by 5 and 2 examples.

Explore the six relational operators: equal to, not equal to, greater than, smaller than, greater than or equal to, and smaller than or equal to. Learn how they yield boolean results when comparing numbers and strings in code, with practical examples.

Explore assignment operators in Python for placements, highlighting how they assign values within basic programming tasks and preparing you for practical interview scenarios.

Learn how programming makes machines decide through a simple, stepwise decision process, using a bus, motor vehicle, or bicycle analogy to illustrate if-else logic.

Learn to determine even or odd numbers in Python using the modulus operator and if-elif-else blocks, with indentation, print statements, and debugging.

Write a Python program in VS Code to determine triangle type from side lengths a, b, c: equilateral, isosceles, or scalene, using if/elif/else.

Learn to determine leap years with conditional logic: check divisibility by 4, 100, and 400, using examples like 2000, 2004, and 3000.

Learn how loops move data from a to E with a while loop, an initial value, and a true condition, updating until five, shown via pseudocode and VS Code debugging.

Print all numbers from 1 to 5 using a while loop in Python, showing how to initialize i, test i is at most 5, print i, and increment i.

Learn to print all even numbers from 10 to 1 using a while loop, with decrement by two and optional if condition. Emphasize loop control and proper indentation.

Apply if-conditions and loops to convert input data into the desired output, illustrated by a fruit basket analogy. Identify the data and the loop to use.

Print every character in a string by using indexing and a for loop, iterating from zero to the string length and printing each element on its own line.

Explore sets in Python for placements, learning that sets are unordered collections of unique elements, and perform union, intersection, and difference with practical examples in code.

Check if a string is a valid password by enforcing minimum length, no spaces or slashes, not starting with a number, and containing a digit and an uppercase letter.

Sort a string of lowercase letters by converting characters to ascii values with ord, sorting, then converting back with chr to produce an alphabetically ordered string in Python.