draft:

Packages in Python

Today I am starting to learn python packages and I’m using this video for reference.

Overview

module vs packages vs libraries

  • Module: python file with some functionalities>(classes,functions,methods etc.)
  • packages: contains multiple modules, contains >an __init__ file
  • Library: multiple packages
  • Script: python file that is run to execute code (i.e. main.py)

It should look something like this: structure

import Mylib 
#imports the whole library and all the packages and modules included within that library

import Mylib.Package1 
# imports the specified package ONLY

from Mylib import Package1 
# another way to write it

from Mylib import module1 
# imports the specified module ONLY

from Mylib.Package1.module1 import myfunction1
# imports ONLY the specified function in the specified module from the specified package

Installing packages in python:

you need to use a package manager to install python packages, and pip (the most popular python package manager) is included by default in Python.

pip allows users to install packages from PyPI and other repositories

Installing packages within environment

It is best practice to install packages within created environments rather than globally

venv supports only python libraries and packages

while conda can be used for packages that are in other languages like javascript

command to use :

 pip install package_name 
 # installing in venv environment
 conda install package_name 
 # installing packages in conda environment

Numpy

stands for numerical python, for working with arrays,matrices and math functions.

Pandas

data analysis

Matplotlib

plotting library

PyTorch

machine learning

Pygame

game development