How to define prefect deployments
The Prefect documentation about deplyments are super vague. This post explains how to add deployments. Table of content Where are deploym ...
From the kitchen
Learn how to eat through Python topics.
How To Solve Django Syntax Error On Migrating
The Django syntax error on migrating is very annoying, specially when you don’t find any error when looking for one. This post contains a working solution. Table of contents ...
Why I Prefer Rye: Rye v/s PDM v/s Poetry
Rye is impressive both as a package manager and as an onboarding tool for Python projects. I have done quite some workshops/sessions and one main pain point is getting Python up and running. Rye in ...
Oreiller: A Python Pillow Alternative
Really, oreiller is the french word for a pillow. I always heard about the PIL fork, Pillow but never used it. When I finally used it, I found it to be tedious sometimes. Like including emoj ...
Chat with your own data/text files using chatGPT and LangChain
There are many different approaches to chatting with your own data. One way is to upload your PDF to the OpenAi chatGPT cloud. This comes with several limitations such as data being deleted or um ...
Understand langChain to Quickly Get Started with Production Codebases
LangChain is a superb library to productionize LLMs. It has few concepts which make it great. If you want to quickly get started with LangChain as maybe like me you have production in front of you, ...
Installing pipx on Mint and Ubuntu
pipx allows you to use python projects on the commandline without using a virtual environment each time. Here’s how to install it on Ubuntu and Linux Mint ...
What is Perceptron in Deep Learning
Deep learning is one of the most useful and trending topics in the current world scenario, which works on the concepts of neural networks, computer vision, perceptrons, and many other techniques. P ...
Ml wizard
Bag of Words in Natural Language Processing
Bag of Words is a type of vectorization technique used to transform the textual data into vector form in order to feed the data to the model for training purposes. The bag of words vectorization te ...
Ml wizard
Word2Vec Vectorizer in Natural Language Processing
In natural language processing, Word2Vec is one of the most widely used vectorization techniques used for transferring words or textual data into vector or numerical form to feed it to the machine ...
Ml wizard
TFIDF Vectorizers in Natural Language Processing
Vectorization is a technique in natural language processing that is used to transform the text into vectors. However, multiple vectorization techniques are used to transform different texts. TFIDF ...
Ml wizard
Linear Algebra Applications in Machine Learning
We can take linear algebra as a backbone of machine learning, as almost all the machine learning techniques and algorithms somehow use linear algebra to some extent. Some famous machine learning te ...
Ml wizard
Linear Algebra in Recommendation Systems of Machine Learning
Linear algebra in machine learning is one of the essential topics to learn and have an idea about, as it is applicable and plays a critical role in many machine learning applications. Recommendatio ...
Ml wizard
Principle Component Analysis in Machine Learning
In machine learning to achieve higher accuracies and performance of the model, the data quality plays a major role while enhancing the model. If good quality data with meaningful f ...
Ml wizard
Beyond the Basics: Unconventional Uses of Seaborn Heatmaps for Data Visualization
Heatmaps can bring your data to life. Versatile and eye-catching. There are many situations where they can highlight important relationships in your data. Specifically, we will discuss how you can ...
Data scientist
Eigen Decomposition in Machine Learning
Matrix decomposition in linear algebra is one of the most valuable techniques for reducing the matrix into smaller parts. In matrix decomposition, the eigendecomposition is a fundamental concept th ...
Ml wizard
Data Scaling Techniques in Machine Learning
Data and its quality affect machine learning models and their accuracy, and the quality of the data can not be well in some types of problems which can be solved by machine learning. Here the scale ...
Ml wizard
AdaBoost vs. Naive Bayes Algorithms in Machine Learning
In machine learning, the algorithm plays a significant role while training and building a successful model. According to the data and its behavior, a proper machine learning algorithm should be sel ...
Ml wizard
Logistic Regression vs. K Nearest Neighbors in Machine Learning
In machine learning, using an appropriate algorithm according to the behavior of the data and its pattern is an essential thing to achieve higher accuracies and accurate performing models. Many mac ...
Ml wizard
Linear Regression vs. Decision Trees vs. Support Vector Machines
Machine Learning algorithms are one of the most important things to decide during model training and building. All the datasets and problem statements related to that in machine learning are not th ...
Ml wizard
10 Classification Cost Functions in Machine Learning
Cost functions in machine learning measure the performance of the machine learning algorithm trained on a particular dataset. By measuring the cost function or cost for a specific model, we can eas ...
Ml wizard
ReLU Activation Function and Its Variants
Activation functions in deep learning are the functions that decide the output from node or hidden layers from a given set of inputs in neural networks. There are many activation functions used in ...
Ml wizard
How to Frame a Machine Learning Problem | Design Your Data Science Project
Machine learning is the concept that a computer program can learn and adapt to new data without human intervention. It is a sub-field of artificial intelligence that keeps a computer’s built- ...
Ml wizard
Blending Algorithms in Machine Learning
The Ensemble technique is one of the best-performing techniques used in the field of machine learning for getting better results on complex types of datasets. There are many ensemble techniques ava ...
Ml wizard
Choosing the right database(RDBMS) for Data analyst?
Which database is best? The question, obviously, depends on what you want to use it for. ...
Data scientist
Measures in Statistics for Data Science
Statistics is a critical component of data science and machine learning algorithms. Almost all the machine learning algorithms use mathematics in the backend, which is linear algebra and statistics ...
Ml wizard
Why Does Lasso (L1) Regression Create Sparsity?
The Lasso regression is a regularization technique and a type of regression that is well-suited for m ...
Ml wizard
Auto-differentiation and Autograd explained step by step
We will understand what is automatic differentiation for absolute beginners, although this concept requires a fair amount of theoretical understanding of derivatives and the chain rule, But don&rsq ...
Data scientist
Nesterov Accelerated Gradient (NAG) Optimizer in Deep Learning
In deep learning, optimizers are the type of function which are used to adjust the parameters of the model. The optimizers are used in deep learning to adjust the weights and biases of the neural n ...
Ml wizard
2 Brilliant Breakthroughs in Computational Topology Using Machine Learning
Topology is a classical branch of mathematics, born essentially from Euler’s studies in the XVII century. It deals with the abstract notion of shape and geometry. The last de ...
Data scientist
Why was "scipy.misc" removed, and what's next?
Miscellaneous routines in scipy included convenient functions. This article cover the removal of this feature. Table of content Why was _Miscellaneous routines_ r ...
Data scientist
NeuroJSON: A Potential Neuro-Imaging Library For Python
NeuroJson, founded by Qianqian Fang, is an open-source project which aims to create easy-to-adopt, easy-to-ext ...
Data scientist
Decoding Symmetric Indefinite Matrices In Python
This article is a gentle introduction to symmetric indefinite matrices in Python Table of content What are symmetric indefinite matrices andwhere are they used? Imple ...
Data scientist
Biosim4: Framework For Evolution With Neural Networks
Biosim4 is a project in which there’s a 2-dimensional world where creatures with neural brains live in it. They have genomes (complete genetic information) that they pass on ...
Data scientist
An Overview of Python Terminal Plotting Libraries
There exist many terminal plotting libraries. In Python there are some 3-4 main ones. In this post we’ll have an overview of the libraries. ...
How To Have Django Packages in Flask
Django packages in Flask seems like a far-away dream, but shopyo 4.6.0 allows you to install Shopyo apps from pypi. What is Shopyo? Sh ...
How to integrate P5JS with Flask-SocketIO
P5Js is an implementation of processing.org’s library in JavaSript. It can be thought of as a canvas management library. Integrating such a library with a common backend like Flask unlocks am ...
Build A Note App In Flask As Fast As It Can Get (Using Shopyo)
Shopyo is a framework to get started with Flask really quick. It includes several libraries to get started by default. In this tutorial we will build ...
Notes of Get your resources faster, with importlib.resources by Barry Warsaw
Talk notes thepkg/ # is a package since has __init__.py __init__.py a.py b.py data/ ...
How to Integrate Tinymce 5 with Flask (with csrf)
This article shows how to integrate Tinymce 5 with Flask even including csrf protection! Text area <textarea id="content"></textarea ...
Python Engineering Articles
This page lists the very best Python engineering articles of the internet, hand-picked to give hours and hours of pure reading joy. It is especially designed for onboarding new members on your Pyt ...
Python-efl Custom Elementary Widget
Python-EFL is a wrapper around the Enlightenment GUI kit. This series of tutorials is an update from the original author. ''' Abdur-Ramaan Janhangeer Updated ...
Python-efl Generic List
Python-EFL is a wrapper around the Enlightenment GUI kit. This series of tutorials is an update from the original author. ''' Abdur-Ramaan Janhangeer Updated ...
Python-efl Lists
Python-EFL is a wrapper around the Enlightenment GUI kit. This series of tutorials is an update from the original author. ''' Abdur-Ramaan Janhangeer Updated ...
Python-efl Elm Extensions
Python-EFL is a wrapper around the Enlightenment GUI kit. This series of tutorials is an update from the original author. To follow this tutorial, download/clone ...
Python-efl Naviframe
Python-EFL is a wrapper around the Enlightenment GUI kit. This series of tutorials is an update from the original author. ''' Abdur-Ramaan Janhangeer Updated ...
Python-efl Displaying Images
Python-EFL is a wrapper around the Enlightenment GUI kit. This series of tutorials is an update from the original author. ''' Abdur-Ramaan Janhangeer Updated ...
Python-efl Align Hints
Python-EFL is a wrapper around the Enlightenment GUI kit. This series of tutorials is an update from the original author. ''' Abdur-Ramaan Janhangeer Updated ...
Python-efl Weight Hints Callback
Python-EFL is a wrapper around the Enlightenment GUI kit. This series of tutorials is an update from the original author. Callback demo ''' Abdur-Ramaa ...
Python-efl A Window
Python-EFL is a wrapper around the Enlightenment GUI kit. This series of tutorials is an update from the original author. Simple window Be sure to read first: ...
Why I Admire Tiangolo More Than Fastapi
People talk about FastAPI a lot, but they give little attention to Sebastián Ramírez, alias tiangolo. It’s so obvious to me that FastAPI is a reflection of someone cool. It’s hard to mi ...
Python: Making Imports Callable
I wanted to do import module module() I thought this did not exist in Python but Chris Angelico, a P ...
How to install Python-efl on Ubuntu or Linux Mint
Python-efl is the binding for EFL, an awesome and performance-obcessed set of libraries. EFL stands for Enlightment Foundation Libraries. It was started for the ...
How to solve celery task has no attribute AsyncResult
I was looking through Grinberg’s tuto on celery and flask. I saw querying tasks by ...
How to query task by id in celery
Using celery 5.1.2 you can get the task id by the following code snippet: from celery import current_app as celery_app # in your function: celery_app.tasks[' ...
How to set task id in celery
Here’s a convenient way to set task id in celery: import uuid # in-built in Python task_id = str(uuid.uuid1()) task_dosomething.apply_async(task_id=task ...
How to get server response from DropzoneJs for chunk uploads
After much struggling, here’s the magical formula we got for getting the server response back for chunck uploads: var myDropzone = new Dropzone(document ...
Why Choose Flask Over FastAPI
FastAPI positions itself as one of the best choices for API development in Python. The project is polished for sure, the ...
Machine Learning Part 12 Association Analysis
12 association analysis Machine Learning ♡ supervised learning 👉 ♡ unsupervised learning ♡ reinforcement learning unsupervised learning is where your program has to find how ...
Machine Learning Part 11 Unpervised Learning
11 unsupervised learning Machine Learning ♡ supervised learning 👉 ♡ unsupervised learning ♡ reinforcement learning unsupervised learning is where your program has to find how ...
Machine Learning Part 10 Naive Bayes
10 naive bayes Machine Learning 👉♡ supervised learning ♡ unsupervised learning ♡ reinforcement learning recap: 🔖 types of supervised learning ✅ classification 📑 ...
Machine Learning Part 9 Neural Networks
9 neural networks Machine Learning 👉♡ supervised learning ♡ unsupervised learning ♡ reinforcement learning recap: 🔖 types of supervised learning ✅ classification 📑 ...
Machine Learning Part 8: Support Vector Machines
8 support vector machines Machine Learning 👉♡ supervised learning ♡ unsupervised learning ♡ reinforcement learning recap: 🔖 types of supervised learning ✅ classificati ...
Daily Coding Problem Solution 4
This problem was asked by Stripe. Given an array of integers, find the first missing positive integer in linear time and constant space. In other words, find the lowest positive integer that ...
Daily Coding Problem Solution 5
This problem was asked by Jane Street. cons(a, b) constructs a pair, and car(pair) and cdr(pair) returns the first and last element of that pair. For example, car(cons(3, 4)) returns 3, and ...
Daily Coding Problem Solution 3
This problem was asked by Google. Given the root to a binary tree, implement serialize(root), which serializes the tree into a string, and deserialize(s), which deserializes the string back ...
Daily Coding Problem Solution 2
This problem was asked by Uber. Given an array of integers, return a new array such that each element at index i of the new array is the product of all the numbers in the original array exce ...
Daily Coding Problem Solution 1
This problem was recently asked by Google. Given a list of numbers and a number k, return whether any two numbers from the list add up to k. For example, given [10, 15, 3, 7] and k of ...
Chatterbot Google Colab Train English Corpus
Here’s how to solve the file not found for training chatterbot on Google collab: # Install !pip install chatterbot !pip install chatterbot-corpus # mov ...
Learning Flask To Help With Dog Care: Interview With Chris Hopkinson
Chris has been learning Flask to help with Dog Care. He felt Flask would help him in his business activities! Let’s have a chat with him! Welcome Chris Hopkinson, Can you prese ...
How to implement beautiful notifications in Flask
Since you already know how to implement notifications, let’s see how to implement beautiful notifications in Flas ...
How to implement notification in Flask
Implementing notifications in Flask goes way beyond using flash. You have to add this snippet in your templates: <div id="flashed-messages"> ...
How to prevent the Open Redirect vulnerability with the next parameter in Flask
Let’s say someone codes a url like this: http://domain.com/do/something?next=http://domain.com/homepage Now an attacker can craft the ...
How to define global template variables in Flask
Let’s say you want to have some variables available in all templates by default. There’s how you do it: @app.context_processor def inject_glob ...
How to disable csrf protection for particular routes in Flask-wtf
Flask-wtf recommends using @csrf.exempt to disable csrf protection for particular routes as in the case of APIs. Now this is pretty confusing. What does csrf refers to? I ...
How to use Flask-admin with Flask-login
Steps: Have a login route accept a next parameter Define your model view and admin index view Register models In the example below, auth.login is the lo ...
How to correctly use the next parameter in login and logout in Flask
Here is a sample login and logout route taken from the shopyo web framework. You can learn ...
The Zen Of Python: A Most In Depth Article
Note: I wrote a quite complete article on the Zen but for some reason it went down in seo history. I am tired seeing people write ‘in-depth’ article with commentaries from the top o ...
Python Generators: The In-depth Article You've Always Wanted
Table of contents Why were Python generators introduced? How do Python Generators differ from normal functions? Execution flow Immediate usefulness ...
Realtime CPU monitor using PyGame
Here’s a realtime CPU monitor using PyGame: ''' Author: https://github.com/Abdur-rahmaanJ Instructions: pip install psutil hooman==0.3.6 ''' from ...
Display Most Frequent Words Using Pygame
""" Author: Abdur-Rahmaan Janhangeer Github: https://github.com/Abdur-rahmaanJ Instructions: pip install hooman """ from hooman imp ...
Python: Running makefile on windows using git mingw bash
Linux owners configure makefiles so as to have easy commands to perform operations such as make dependencies to pip install required packages. Here are the dry simple steps to run make ...
How to run a Flask Linux-only App on Windows - The AFPy Site
There are in the Python world many Flask Linux-only apps. However in many case, with some twerking we can make them work on Windows. We’ll take the case of the AFPy site. First fork th ...
An Advanced Flask App: Shopyo
Shopyo is an Open Source Flask-based, Python-po ...
Pyside2 / PyQt5 Extract Data From QFormLayout
import sys from PySide2 import QtCore from PySide2 import QtWidgets from PySide2 import QtGui class MainWindow(QtWidgets.QMainWindow): def __init__(self, par ...
Legally Free Python Books List
Here is my personal list of legally free Python books. Warning: Packt free books are highly unreliable, what can be free today can no longer be free tomorrow They were included as they are ...
Free Python Courses List
Here is a list of Python free courses that i maintain An Introduction to Interactive Programming in Python (Part 1) ...
Upload your package to Pypi
To upload your project to Pypi, this assumes you have your setup.py ready cd into your package directory and type python setup.py sdist ...
Packaging An Sqlite db-included CRUD PyQt5 app using PyInstaller
The Python programmer’s journey inevitably leads him to one of the black belts of the industry: packaging and distribution. But, particularly in Python, distribution can also be a black beast ...
What's New in Python 3.9 alpha2?
Python is set to release a new version next year, the shiny 3.9. This one omitted the sys.argv change rolled back in alpha2 Here’s our take of the most noticeable changes: Keyword Arg ...
PyQt5 / PySide2 QTableView how to find out if row is selected and which one in Python?
Question: I have a QTableView in PyQT5 / PySide2 I want to * Know if a row is selected (my tableview is set to select by rows) * Know which row is selected Thanks Answer: ...
Get Python's help() function stored as string just like console
Python’s help function lets you see the help message written for you by the developer. It is particularly useful in IDLE / shell to inspect modules and explore. Here is a sample shell ...
String Manipulation Functions: The Top 5 You Forgot To Pack
String manipulation functions, good ones are available by default in Python. Ignorance make people always re-invent. Python is powerful and … thoughtful. We were strict and choose only 5, the five ...
DSL / Python / New Language: How to build a CSS pre-processor (like SASS) from scratch (DotDot)
If you are in web development, maybe you’ve heard of Sass, Less, Pug, ...
Machine Learning part 7: Random Forests Explained
7 random forest Machine Learning 👉 ♡ supervised learning ♡ unsupervised learning ♡ reinforcement learning recap: 🔖 types of supervised learning ✔ cla ...
Machine Learning part 6: enthropy and gain
Machine Learning 👉 ♡ supervised learning ♡ unsupervised learning ♡ reinforcement learning recap: 🔖 types of supervised learning ✔ classification 📑 ...
Machine Learning part 5: mixed methods
5 mixed methods Machine Learning 👉 ♡ supervised learning ♡ unsupervised learning ♡ reinforcement learning types of supervised learning ✔ classification 🗒 ...
Machine Learning part 4: Gradient Descent and cost function
#4 gradient descent and cost function Machine Learning 👉 ♡ supervised learning ♡ unsupervised learning ♡ reinforced learning ☄ cost functi ...
Plotting Hotspots in Mauritius with Python and Folium
geo plotting has never been so easy. thanks dhrumil patel! download the data file here ...
Machine Learning part 3: regression
Machine Learning ♡ supervised learning ♡ unsupervised learning ♡ reinforcement learning #3 supervised learning: regression ...
Machine Learning part 2: supervised learning
Machine Learning ♡ supervised learning ♡ unsupervised learning ♡ reinforcement learning #2 supervised learning in supervised learn ...
Machine Learning part 2: supervised learning
Machine Learning ♡ supervised learning ♡ unsupervised learning ♡ reinforcement learning #2 supervised learning in supervised learn ...
PyQt5 / PySide2 How to get value of cells of selected row in QTableView in Python?
Question: My QTableView is set to select by rows only. How do i get the value of cells in the selected row? Answer: selection_model = tableview.selectionModel() ...
Machine Learning part 1: introduction
what is it? wikipaedia defines machine learning as: _the scientific study of algorithms and statistical models that computer systems use to progressively improve th ...
Machine Learning part 2: supervised learning
Machine Learning ♡ supervised learning ♡ unsupervised learning ♡ reinforcement learning #2 supervised learning in supervised learn ...
Checking For Prime
prime numbers are surprisingly easy to check for. to check if a number is prime, we divide it by it’s factors. 1 is not prime def is_prime(num): if ...
Reviving Bertrand Russell Through Python
famous authors are praised, respected, admired and missed due to their works. after reading all the titles of an excellent author, one is left wishing for more. curiously enough we now have the abi ...
Armstrong Numbers
we start the problem series on PMC (Python Members Club) with Armstrong Numbers. definition an armstrong number is a number such that the sum of the digits in the number ra ...
how to create your own DSL(Domain Specific Language) in python
Sometimes you need more than a cli program. You need more flexibility and control. A Domain Specific Language (DSL) is the right fit for specialised tasks. This post shows how you can build your ow ...
venv usage on windows, activate and deactivate
go on to your project root directory first create a virtual environment with syntax python3 -m venv python3 -m venv niceproject ...
Mastering Python's Regex - part 1 : Basics
Python regular expressions is often an overlooked topic in the python apprentice path due to it’s seemingly mingled nature. If programming was new enough, you don’t need those bizarre s ...
removing last columns of excel dataframe using pandas by index
in case this does not load, view it here ...
preparing an excel file for analysis using pandas
in case it does not load, you can view it here ...
calculating distance for four features
if you want to calculate the distance between 4 features coordinates, you do it like that : A (1,2,5,1) B (7, 1, 3, 0) import math dist = math. ...
web mail interface using pi and flask
have you ever used gmail or hotmail on the web? it seems so natural that we take it for granted. in this post we’ll see how to build a basic web mail client to send mail … using flask ...
Installing OpenCv on the Pi3 with python3 (and usb webcam)
opencv is one of the most difficult python package to install. it’s not a pip install easy package issue. in this post, we’ll see how to painlessly install it. Target Os ========= ...
Raspberry-Pi setup – part 2 : establishing ssh connection
establishing an ssh connection is incredibly useful to manage your pi from another device/remotely be it your android phone or pc Steps = ...
Fixing an issue of tkinter tags overlapping
If you’ve worked with tkinter’s Text widget, you may notice that when you add many tags to it sometimes things get messed. So let’s dive right into this. We will use syntax highli ...
Coder
Raspberry-Pi setup - part 1 : OS installation
In this post we’ll cover the software setup part. The raspberry pi is an empty computer, empty of peripherals and os. the first step is to install the os. Target Model ============ ras ...
translating location to map coordinates
let us say you have a character moving across the screen, and you want to have it’s location in terms of the map coordinate like (0,0), (3,2) instead of the actual location, like if you want ...
generating unintelligent random maps on mouse press
this code generates random maps on mouse press. it is really just a simple 2d array value filling. a modification of this art ...
game map rendering
game map rendering or simply map rendering is a nice technique that is used to generate worlds. explanations follow suit : demo explanations ...
polygon drawer implementation (processing.py)
if ever you wanted to implement a polygon drawer, here it is : explanations nodes = [ [50,40], [40,50] ] first we added s ...
handling curly braces in string formatting - python
let us say you want to print : {text} using '{ {} }'.format(content) how to escape th ...
home machine learning project : identifying cutlery items
machine learning is becoming crucial to add to your backpack. this post attempts to show a basic application of machine learning. we need to determine whether some cutlery items are bowls or mugs o ...
matplotlib scatter plot annotate / set text at / label each point
a hard question in matplotlib is to annotate each point with a text or label. answers range from ax.annotate to some more weird stuffs. fortunately, the answer is a simple one! this question poses ...
building an indentation lexer in python - a tutorial
scope by indentation is an alternative to curly braces and is used by languages like python and pug. it certainly is more human-friendly as experience gathered tends to produce more and more friend ...
data usage policy
we have drafted our data usage policy and taken appropriate measures to ensure transparency. it can be found here ...
building a lexer in python - a tutorial
knowing how to build a lexer allows you to extend your applications and opens up a whole new world. You can write your own DSLs or your own language or just better separate symbols: in other words, ...
greenBerry - a new programming language
[caption id=”attachment_95” align=”aligncenter” width=”149”] ...
Coder
a fix to tkinter output not showing
tkinter is fine once you understand it. let us see what problem user vikas was having and how to fix it! [caption id=”attachment_85” align=”aligncenter” width=” ...
processing.py : trails using oop
[caption id=”attachment_77” align=”aligncenter” width=”300”] ...
tkinter : tackling import for python 2 and 3
[caption id=”” align=”aligncenter” width=”480”] gui package for python[/caption] ...