Python Theory ?

Type Casting in Python

• Understanding the concept of type casting
• Implicit and explicit type conversion
• Commonly used type casting techniques in Python

Functions in Python

• Defining and calling functions
• Function arguments and return values
• Scope of variables in functions
• Anonymous (lambda) functions

Python Flavors

• Understanding different Python flavors (CPython, Jython, PyPy, etc.)
• Comparing their usage and features
• Writing Python code for different flavors

Important Operators in Python

• Arithmetic operators
• Relational operators
• Assignment operators
• Logical operators
• Bitwise operators
• Operator precedence and associativity

Object-Oriented Programming Essentials

• Understanding classes and objects
• Defining methods in classes
• Inheritance and polymorphism
• Encapsulation and abstraction

Command Line Arguments in Python

• Passing arguments to Python scripts through command line
• Accessing and manipulating command line arguments in Python
• Best practices for handling command line arguments

Python Modules: Import and Composition

• Understanding the concept of modules
• Importing and using modules in Python programs
• Creating and using custom modules
• Exploring Python Standard Library and third-party modules
• Using composition for efficient code reuse

 

you're going to see 1 on the terminal because the index is 1.

print("Hello World"[1]) # Output: e

The float function is used to convert a string to a float value.

first = float(input("Enter the first number: "))

We can also change this expression to first + second, which is another way to write this piece of code.

The lower method is used to convert a string to lowercase or to find a character or a sequence of characters.

string = "Hello World"print(string.lower()) # Output: hello worldprint(string.find('o')) # Output: 4print(string.replace('o','a')) # Output: Hella Warld

The in operator can be used to check if a string contains a character.

string = "Python is a programming language for beginners."print('language' in string) # Output: True

Python has various arithmetic operators that we can use, such as addition (+), subtraction (-), multiplication (*), and division (/).

print(10 + 3) # Output: 13

We also have an augmented assignment operator in Python that means incrementing a variable by a value.

x = 5x += 3 # Output: 8

Operator precedence in Python is similar to math, but we can always use parentheses to change the order of operations.

x = 10 + 3 * 2 # Output: 16

Multiplication and division have a higher order, so they are evaluated first. That's why the answer is 16.

x = 10 + 3 / 2print(x) # Output: 11.5

When we print x, we get 11.5.

x += 3print(x) # Output: 14.5

When we run x += 3, we get 14.5 as the result. When we run x == 13, it will store False in the x variable.

x = 1000 # Output: 1000

In today's video, we discuss the topics and skills that you need to learn to become a master at the Python programming language. We've broken these skills up into four main categories. Those are basic intermediate advanced advanced , and then finally expert slash master level. And if you're a beginner programmer, you can kind of treat this video as a curriculum. As soon as you get out of this basic level, then after that, it's probably going to go to control flow. So it's things like if else , else or loops and Iterable. Then after you've learned kind of the core basic syntax and language features of Python. Then you're probably going into functions. Functions are really important , a huge part of Python , and really will teach you a lot if you can understand how those work. And that leads me nicely into mutable and immutable data types. The first thing that I 'm going to focus on here and intermediate skills is object oriented , programming , understanding classes and understanding objects. After that, of course, understanding now how to work with classes. And then after you've learned that I would recommend you move into data structures.

In today's video, we discuss the topics and skills that you need to learn to become a master at the Python programming language. We've broken these skills up into four main categories. Those are basic intermediate advanced advanced , and then finally expert slash master level. And if you're a beginner programmer, you can kind of treat this video as a curriculum. As soon as you get out of this basic level, then after that, it's probably going to go to control flow. So it's things like if else , else or loops and Iterable. Then after you've learned kind of the core basic syntax and language features of Python. Then you're probably going into functions. Functions are really important , a huge part of Python , and really will teach you a lot if you can understand how those work. And that leads me nicely into mutable and immutable data types. The first thing that I 'm going to focus on here and intermediate skills is object oriented , programming , understanding classes and understanding objects. After that, of course, understanding now how to work with classes. And then after you've learned that I would recommend you move into data structures.