Python for Beginners
Overview
Next Steps
If you are done with the above tutorials, we can read the below tutorials.
Introduction
An Introduction to Python
This section will help you get started with Python Programming language by installing it and running your first program. Also, it will walk you through the basic concepts and fundamentals of Python.
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- Get Started With Python: Learn how to use IDLE to run Python code interactively. Also, understand syntax and indentation in Python.
- Python Statements: A statement is an instruction that a Python interpreter can execute. Learn simple statements and compound statements.
- Python Comments: Comments are descriptions that help programmers to understand the functionality of the program. Learn how to add comments to your Python code. Use inline comments, block comments, and multi-line comments.
- Python Keywords: Python keywords are reserved words that have a special meaning associated with them and can’t be used for anything but those specific purposes.
- Python Operators: Python has several operators that we can use to perform different mathematical, logical, and boolean operations on data.
- Python XOR Operator: Python has a special XOR operator (^) that compares two binary numbers. It returns true if their bits are different, often used for cryptography and checking data differences.
Practice:
- Basic Python Exercise for Beginners
- Basic Python Quiz For Beginners
- Python Operators and Expressions Quiz
Variables and Data Types
Learn how to create, modify, and delete variables of different types. Learn to use some basic numeric (int, float, and complex), string, and Boolean types that are built into Python.
For example, we can create a variable with a specific name. Once you create a variable, you can later call up its value by typing the variable name.
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- Python Variables: A variable is a reserved memory area (memory address) to store value.
- Python Data Types: Data types specify the different sizes and values that can be stored in the variable.
- Python Casting (type conversion): Learn type conversion and typecasting. Convert variable declared in specific data type to different data types.
- Python Number: Learn to work with numerical data in Python. Learn numerical data types. Also learn the Math module, Decimal, and Fraction modules.
Practice:
Control Flow and Loops
In Python, flow control is the order in which statements or blocks of code are executed at runtime based on a condition. The loop statement repeats a code block several times.
Learn to use loops, conditional statements, iterative statements, and transfer statements.
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- Control flow statements: Use the
if-else
statements in Python for conditional decision-making - Python for loop: To iterate over a sequence of elements such as a list, or string.
- Python functions: Python functions are like mini-programs within your code, allowing you to break down tasks into smaller, manageable parts.
- Python range() function: Using a
for
loop with range(), we can repeat an action a specific number of times - Python while loop: To repeat a block of code repeatedly, as long as the condition is true.
- Break and Continue: To alter the loop’s execution in a certain manner.
- Nested loop: To loop inside a loop is known as a nested loop.
- Print pattern in Python: Learn to use loops to print numbers and pyramid patterns.
Practice:
Python Input and Output
This section lets you know the input and output in Python. Learn to get input from the user, files, and display output on the screen or console. Also, learn output formatting.
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- Python Input and Output: Use the
input()
function, to take input from a user, and theprint()
function, we display output on the screen. - How to check if user input is a number or string
- Take a list as input from a user
Practice:
Basic Data Structures
In Python, Data structures are the fundamental constructs that we can use to store multiple values. Data structure provides a way to organize and access data efficiently. Python comes with an extensive set of data structures in its standard library.
In this section, we'll learn basic data structures such as list, dict, set, and tuple.
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- Python Lists: In Python, a list is an ordered sequence of items. Learn to create, iterate, and access a list. Also, learn list operations and methods.
- Nested list in Python: Nested lists in Python are lists that contain other lists. They help structure and manage data more efficiently.
- Python Tuples: Tuples are ordered collections of heterogeneous data that are unchangeable. Learn how to use a tuple data structure in Python. Also, learn how to create, access, and modify a tuple.
- Python Sets: In Python, a Set is an unordered collection of data items that are unique. Learn to create a set and add, update, and remove items from a set. Also, learn the different set methods and operations such as union, intersection, difference, and many more.
- Python Dictionaries: Dictionary are unordered collections of unique values stored in (Key-Value) pairs. Learn how to create, access, and modify a dict in Python and all other operations we can perform on a dictionary
Python Functions and Modules
Python Functions and Modules
In Python, the function is a block of code defined with a name. We use functions whenever we need to perform the same task multiple times without writing the same code again. It can take arguments and returns the value.
In Python, modules refer to the Python file, which contains Python code like Python statements, classes, functions, variables, etc. A file with Python code is defined with py
extension.
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Practice: