Solidity Iterable Mapping Type (Howto + Video)

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In this article, we’ll continue our story on the mapping data structure, but this time, we’ll go through the data structure upgrade and reach a new functionality: the iterative mapping data structure. This way, by upgrading the readily available data structure, we’ll get a broader perspective and better understanding of how it works and how … Read more

Solidity Mapping Type Made Easy [+Video]

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In this article, you’ll dive into detail on the Solidity mapping type and learn about mapping type specifics. It’s part of our long-standing tradition to make this (and other) articles a faithful companion, or a supplement to the official Solidity documentation, starting with docs for this article’s topic. Mapping Type We have seen mapping type … Read more

Python | Split String after Character

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Problem Formulation 📜 Problem: Given a string. How will you split the string after a specific character? Note that there can be different scenarios that can come up when you are trying to split a string after a certain character/sub-string. So, let’s understand the given problem with the help of numerous examples. 🏷️Scenario 1: Splitting … Read more

The Fasting Cure [Book Summary + Free Download]

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Fasting has many scientifically proven benefits for your body and overall health: Intermittent fasting improved blood pressure and resting heart rates as well as other heart-related measurements. Physical performance. Young men who fasted for 16 hours showed fat loss while maintaining muscle mass. Mice who were fed on alternate days showed better endurance in running. … Read more

How to Add Elements to a Python Set

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Problem Formulation and Solution Overview This article will show you how to add elements to a Python set. ℹ️ Info: A Python set is a collection of unique item(s) saved in no particular order (unordered). A set cannot be changed. However, elements can be added and removed. Sets can also perform calculations like union, intersection, … Read more

How to Remove ‘\x’ From a Hex String in Python?

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Problem Formulation + Examples 💬 Question: Given a string of hexadecimal encoded string such as ‘\x00\xff\xf2’. How to remove the ‘\x’ prefixes or characters from the hex string? Here are a few examples of what you want to accomplish: Hex String Desired Output ‘\x00\xff\xf2′ ’00fff2’ ‘\x41\x42\x43’ ‘414243’ ‘\x53′ ’53’ ‘\xff\xff\xff\xff\xff’ ‘ffffffffff’ ‘\x00\x6a\x6f’ ‘006a6f’ Strawman Solutions … Read more

Python Create JSON File

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Problem Formulation and Solution Overview This article focuses on working with a JSON file. JSON is an acronym for JavaScript Object Notation. This is a flat-text file formatted based on JavaScript (JS) Syntax. This file is most commonly noted for its ability to transmit data to/from web applications, such as sending/receiving data from a Server/Client … Read more

Python Hex to Float Conversion

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Problem Formulation 💬 Question: Given a hexadecimal string. How to convert it to a float? Examples Here are a few example conversions where each hex string represents four bytes, i.e., two hex characters per byte. Hex String Float ‘0f0f0f0f’ 7.053344520075142e-30 ‘4282cbf1’ 65.39832305908203 ‘43322ffb’ 178.1874237060547 ‘534f11ab’ 889354649600.0 Solution – Convert Hex to Float The expression struct.unpack(‘!f’, … Read more

How to Open a URL in Your Browser From a Python Script?

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To open a URL in your standard browser (Win, macOS, Linux) from your Python script, e.g., call webbrowser.open(‘https://google.com’) to open Google. Don’t forget to run import webbrowser first. But you don’t have to install the module because it’s already in Python’s standard library. Example Here’s an example Python script that opens the URL ‘https://finxter.com’: A … Read more