Python files, modules, package full notes in tamil and English free
Python files modules package full notes in english and tamil in free
Certainly! In Python, files, modules, and packages are important concepts for organizing and structuring your code. Let's explore each of these concepts:
1. **Files:**
A Python file is a text file with a `.py` extension that contains Python code. This code can include variable definitions, function definitions, and other executable statements. Python files are used to store and organize code for different purposes.
Example of a simple Python file named `my_file.py`:
```python
# my_file.py
def greet(name):
print(f"Hello, {name}!")
if __name__ == "__main__":
user = input("Enter your name: ")
greet(user)
```
2. **Modules:**
A module is a file containing Python code, usually containing a collection of related functions, classes, and variables. Modules allow you to organize code into reusable components. You can import and use these components in other Python files.
To import and use functions from a module (`my_module.py`):
```python
# my_module.py
def add(a, b):
return a + b
def subtract(a, b):
return a - b
```
```python
# another_file.py
import my_module
result = my_module.add(5, 3)
print(result) # Output: 8
```
3. **Packages:**
A package is a collection of related Python modules organized in a directory hierarchy. It allows you to create a well-structured project with multiple modules and sub-packages. A package is represented by a directory containing an `__init__.py` file (which can be empty) and one or more module files.
Example of a package structure:
```
my_package/
|-- __init__.py
|-- module1.py
|-- module2.py
```
To use modules from a package (`my_package.module1`):
```python
# my_package/module1.py
def multiply(a, b):
return a * b
```
```python
# main_file.py
from my_package import module1
result = module1.multiply(4, 7)
print(result) # Output: 28
```
These are the basic concepts of files, modules, and packages in Python. They play a crucial role in keeping your code organized, maintainable, and easily reusable.
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