CoderzColumn : Tutorials Home (Page: 17)

CoderzColumn Tutorials


Learning is a lifelong process. But you must know what, where, and how to learn? What skills to develop? What skills will help you boost your career? If not, you are at the right place! Our tutorial section at CoderzColumn is dedicated to providing you with all the practical lessons. It will give you the experience to learn Python for different purposes and code on your own. Our tutorials cover:

  • Python Programming - threading, multiprocessing, concurrent.futures, asyncio, queue, imaplib, smtplib, email, mimetypes, cprofile, profile, tracemalloc, logging, ipywidgets, beautifulsoup, filecmp, glob, shutil, tarfile, zipfile, argparse, datetime, traceback, abc, contextlib, warnings, dataclasses, re, difflib, textwrap, collections, heapq, bisect, weakref, configparser, signa, ipaddress, xarray, pandas, subprocess, sched, etc.
  • Artificial Intelligence - PyTorch, Keras, Tensorflow, JAX, MXNet, Torchvision, Torchtext, GluonCV, GluonNLP, etc
  • Machine Learning - Scikit-Learn, Statsmodels, XGBoost, CatBoost, LightGBM, optuna, scikit-optimize, hyperopt, bayes_opt, scikit-plot, lime, shap, eli5, etc.
  • Data Science - missingno, seaborn, pandas, sweetviz, numpy, networkx, xarray, awkward-array, etc.
  • Data Visualization - Matplotlib, Bokeh, Bqplot, Plotnine, Altair, Plotly, Cufflinks, Holoviews, dash, streamlit, panel, voila, bokeh, geopandas, geoviews, folium, ipyleaflet, geoplot, cartopy, etc.
  • Digital Marketing - SEO tactics, marketing strategies, Social Media marketing, and more.

For an in-depth understanding of the above concepts, check out the sections below.

Recent Tutorials


Tags threads, threading, multithreading-using-python
threading - Guide to Multithreading in Python with Simple Examples
Python

threading - Guide to Multithreading in Python with Simple Examples

Python threading Module - Simple Guide to Create and Manage threads in Python

Sunny Solanki  Sunny Solanki
Tags file-comparison, directories-comparison
filecmp - Compare Files and Directories using Python
Python

filecmp - Compare Files and Directories using Python

filecmp - Compare Files and Directories using Python

Sunny Solanki  Sunny Solanki
Tags hmac, message-authentication-codes
hmac - Hash-based Message Authentication Code using Python
Python

hmac - Hash-based Message Authentication Code using Python

hmac - Hash-based Message Authentication Code using Python

Sunny Solanki  Sunny Solanki
Tags hashlib, secure-hash, message-digest
hashlib - Compute Secure Hashes (Message Digests) in Python
Python

hashlib - Compute Secure Hashes (Message Digests) in Python

hashlib - Compute Secure Hashes (Message Digests) in Python

Sunny Solanki  Sunny Solanki
Tags python, subprocess, unixprocesses
Subprocess - Simple Guide to Launching a Program as a Child Process in Python
Python

Subprocess - Simple Guide to Launching a Program as a Child Process in Python

A detailed guide on how to use Python module “subprocess” to launch a child process that executes shell/command prompt command and retrieves their execution results. Tutorial covers aspects like process creation, waiting for completion, communicating with it, sending input to it, checking for errors, timing it out, killing/terminating it, etc.

Sunny Solanki  Sunny Solanki
Tags ip-address, network-address, interfaces
ipaddress - Simple Guide to Working with IP Addresses, Network Addresses, and Interfaces in Python
Python

ipaddress - Simple Guide to Working with IP Addresses, Network Addresses, and Interfaces in Python

ipaddress - Simple Guide to Working with IP Addresses, Network Addresses and Interfaces in Python

Sunny Solanki  Sunny Solanki
Tags special-methods, dunder-methods, dataclasses, dec…
dataclasses - Add Special Methods (Dunder) to a Class using Decorators
Python

dataclasses - Add Special Methods (Dunder) to a Class using Decorators

dataclasses - Add Special Methods (Dunder) to a Class using Decorators

Sunny Solanki  Sunny Solanki
Tags context-managers, with-statements
contextlib - Useful Context Managers (with Statement) in Python
Python

contextlib - Useful Context Managers (with Statement) in Python

contextlib - Useful Context Managers (with Statement) in Python

Sunny Solanki  Sunny Solanki
Tags insert-item, sort-array
bisect - Add Items to Sorted Array / List Faster
Python

bisect - Add Items to Sorted Array / List Faster

bisect - Add Items to Sorted Array/List Faster

Sunny Solanki  Sunny Solanki
Tags heap, priority-queue
heapq - Heap Queue / Priority Queue Implementation in Python
Python

heapq - Heap Queue / Priority Queue Implementation in Python

heapq - Heap Queue/Priority Queue Implementation in Python

Sunny Solanki  Sunny Solanki
Parallel Computing using Python

Parallel Computing using Python


Parallel Computing is a type of computation where tasks are assigned to individual processes for completion. These processes can be running on a single computer or cluster of computers. Parallel Computing makes multi-tasking super fast.

Python provides different libraries (joblib, dask, ipyparallel, etc) for performing parallel computing.

Concurrent Programming in Python

Concurrent Programming in Python


Concurrent computing is a type of computing where multiple tasks are executed concurrently. Concurrent programming is a type of programming where we divide a big task into small tasks and execute these tasks in parallel. These tasks can be executed in parallel using threads or processes.

Python provides various libraries (threading, multiprocessing, concurrent.futures, asyncio, etc) to create concurrent code.

Visualize Machine Learning Metrics

Visualize Machine Learning Metrics


Once our Machine Learning model is trained, we need some way to evaluate its performance. We need to know whether our model has generalized or not.

For this, various metrics (confusion matrix, ROC AUC curve, precision-recall curve, silhouette Analysis, elbow method, etc) are designed over time. These metrics help us understand the performance of our models trained on various tasks like classification, regression, clustering, etc.

Python has various libraries (scikit-learn, scikit-plot, yellowbrick, interpret-ml, interpret-text, etc) to calculate and visualize these metrics.

Interpret Predictions Of ML Models

Interpret Predictions Of ML Models


After training ML Model, we generally evaluate the performance of model by calculating and visualizing various ML Metrics (confusion matrix, ROC AUC curve, precision-recall curve, silhouette Analysis, elbow method, etc).

These metrics are normally a good starting point. But in many situations, they don’t give a 100% picture of model performance. E.g., A simple cat vs dog image classifier can be using background pixels to classify images instead of actual object (cat or dog) pixels.

In these situations, our ML metrics will give good results. But we should always be a little skeptical of model performance.

We can dive further deep and try to understand how our model is performing on an individual example by interpreting results. Various algorithms have been developed over time to interpret predictions of ML models and many Python libraries (lime, eli5, treeinterpreter, shap, etc) provide their implementation.

Python Data Visualization Libraries

Python Data Visualization Libraries


Data Visualization is a field of graphical representation of information / data. It is one of the most efficient ways of communicating information with users as humans are quite good at capturing patterns in data.

Python has a bunch of libraries that can help us create data visualizations. Some of these libraries (matplotlib, seaborn, plotnine, etc) generate static charts whereas others (bokeh, plotly, bqplot, altair, holoviews, cufflinks, hvplot, etc) generate interactive charts. Majority of basic visualizations like bar charts, line charts, scatter plots, histograms, box plots, pie charts, etc are supported by all libraries. Many libraries also support advanced visualization, widgets, and dashboards.

Advanced Data Visualizations using Python

Advanced Data Visualizations using Python


Basic Data Visualizations like bar charts, line charts, scatter plots, histograms, box plots, pie charts, etc are quite good at representing information and exploring relationships between data variables.

But sometimes these visualizations are not enough and we need to analyze data from different perspectives. For this purpose, many advanced visualizations are developed over time like Sankey diagrams, candlestick charts, network charts, chord diagrams, sunburst charts, radar charts, parallel coordinates charts, etc. Python has many data visualization libraries that let us create such advanced data visualizations.

Python Deep Learning Libraries

Python Deep Learning Libraries


Deep learning is a field in Machine Learning that uses deep neural networks to solve tasks. The neural networks with generally more than one hidden layer are referred to as deep neural networks.

Many real-world tasks like object detection, image classification, image segmentation, etc can not be solved with simple machine learning models (decision trees, random forest, logistic regression, etc). Research has shown that neural networks with many layers are quite good at solving these kinds of tasks involving unstructured data (Image, text, audio, video, etc). Deep neural networks nowadays can have different kinds of layers like convolution, recurrent, etc apart from dense layers.

Python has many famous deep learning libraries (PyTorch, Keras, JAX, Flax, MXNet, Tensorflow, Sonnet, Haiku, PyTorch Lightning, Scikeras, Skorch, etc) that let us create deep neural networks to solve complicated tasks.

Image Classification

Image Classification


Image classification is a sub-field under computer vision and image processing that identifies an object present in an image and assigns a label to an image based on it. Image classification generally works on an image with a single object present in it.

Over the years, many deep neural networks (VGG, ResNet, AlexNet, MobileNet, etc) were developed that solved image classification task with quite a high accuracy. Due to the high accuracy of these algorithms, many Python deep learning libraries started providing these neural networks. We can simply load these networks with weights and make predictions using them.

Python libraries PyTorch and MXNet have helper modules named 'torchvision' and 'gluoncv’ respectively that provide an implementation of image classification networks.