Python

FastAPI language translations I18n Step by Step

Since the beginning of 2020, FastAPI has been gaining momentum as one of the potential alternatives to Flask server for RESTful API. If you are an existing FastAPI user, you should be aware that it does not come with built-in internationalization, and that will likely not change soon, because internationalization strategies are application-dependent.

The following tutorial focuses on server-side i18n .

This tutorial will show you how to i18n your FastAPI web application easily using the following Python libraries:

Python Development

Better SQLAlchemy

In this article, I will dive into the world of SQLAlchemy, uncovering the best practices for optimizing database interactions in Python applications. From designing efficient data models to managing transactions, I will guide you through a range of techniques that will help you build scalable and high-performing applications.

Python Databases Development

Database integration tests with Pytest, SQLAlchemy and Factory Boy with Faker

In this little example, I’m going to show a possible procedure to easily test your piece of code that interacts with a database.

Python Development Databases

Python Cheatsheet 1

Python is the most popular programming language in data science. Use this cheat sheet to jumpstart your Python learning journey.

Python Development

NumPy Illustrated: The Visual Guide to NumPy

NumPy is a fundamental library that most of the widely used Python data processing libraries are built upon pandas , inspired by PyTorch , or can efficiently share data with (TensorFlow , Keras , etc). Understanding how NumPy works gives a boost to your skills in those libraries as well. It is also possible to run NumPy code with no or minimal changes on GPU .

Python Development

Python decorator to parallelize any function

Wouldn’t it be cool if you can speed up your program by just adding a decorator to the function? Wouldn’t it be cool if you don’t have to worry about running the data in a list as a parallelly? Today we are going to write a python decorator which exactly does these automatically for you, so that you can concentrate more on the logics of your code than worrying about multi-threading issues.

Python Development

Python Basics - Mutable vs Immutable Objects

Mutable objects are those that allow you to change their value or data in place without affecting the object's identity. In contrast, immutable objects don't allow this kind of operation. You'll just have the option of creating new objects of the same type with different values.

Python Development

Python super() metod

The super() function is used to give access to methods and properties of a parent or sibling class. The super() function returns an object that represents the parent class.

Python Development

Tips and Tricks for Python Lists

This article is for Python programmers who have gone beyond the basics of using lists, but would like to see some interesting concepts. It isn’t very advanced and should be easy for you to understand.

Python Development

The Definitive Guide to Python import Statements

This tutorial will provide a thorough overview of Python’s import statement and how it works. The import system is powerful, and you’ll learn how to harness this power. While you’ll cover many of the concepts behind Python’s import system, this tutorial is mostly example driven. You’ll learn from several code examples throughout.

Python Development

CheatSheet - Python File Operations

Quick reference on how to read and write files. This short tutorial isn’t intended to cover everything in file reading and writing in Python. Instead, I just wanted to share with you some cheat sheets that I created for reading and writing files in my daily Python programming.

Python Development

Python - How To Refresh an JWT Access Token Using Decorators

When you create a big python application, you can began to run into challenges with longer scripts that extended beyond the expiration of a single JWT.

To elegantly solve this, You can use decorators to check the token’s expiration and request a new token if necessary. This article goes over the framework I set up so that you can apply a similar mechanism in your own scripts.

Setting the Scene

import time
import requests

class myAPI():
    host = None
    key = None
    secret = None
    access_token = None
    access_token_expiration = None

    def __init__(self,host,key,secret):
        # the function that is executed when
        # an instance of the class is created
        pass

    def getAccessToken(self):
        # the function that is 
        # used to request the JWT
        pass

    class Decorators():
        @staticmethod
        def refreshToken(decorated):
            # the function that is used to check
            # the JWT and refresh if necessary
            pass

Our class will work by requiring the fields necessary to request the JWT. Without access, there is nothing more our class will do.

Python Security Development