Problem Formulation Given a string in hexadecimal form: How to convert the hex string to a bytes object in Python? Here are a few examples: Hex String Bytes Object ’01’ b’\x01′ ’04’ b’\x04′ ’08’ b’\x08′ ’01 0a’ b’\x01\n’ ’01 02 0e 0f 0f’ b’\x01\x02\x0e\x0f\x0f’ ‘0f 0f’ b’\x0f\x0f’ Hex String to Bytes using bytes.fromhex(hex_string) To convert … Read more
Summary: You can split a given string at a specific position/index using Python’s string–slicing syntax. Minimal Example: Problem Formulation 💬Problem: Given a string, how will you split the given string at any given position? Let’s have a look at a couple of examples that demonstrate what the problem asks you to do: ◈Example 1 The following … Read more
Problem Formulation and Solution Overview This article will show you how to retrieve a year from a DateTime Object in Python. Whether that being a year from a DateTime Object, a DataFrame, or even a NumPy array. 💬 Question: How would we write code to retrieve the Year from a DateTime Object? We can accomplish … Read more
Welcome to the bonus content of “The Book of Dash”. 🤗 Here you will find additional examples of Plotly Dash components, layouts and style. To learn more about making dashboards with Plotly Dash, and how to buy your copy of “The Book of Dash”, please see the reference section at the bottom of this article. … Read more
Before we dive into named groups, let’s quickly recap normal capture groups in Python. If you already know normal “unnamed capturing groups” well, feel free to skip the first section and move right away to the next one about named capture groups in Python. 👇 What Are Python Regex Groups? A normal Python regex group … Read more
Problem Formulation and Solution Overview This article will show you how 6 ways to remove List elements in Python. To make it more interesting, we have the following running scenario: Suppose you have a Christmas List containing everyone to buy a gift for. Once a gift is purchased, remove this person from the List. Once … Read more
Problem Formulation 💬 Question: How do you write a function that returns a real Python error instead of an “error code” such as -1 or None in case something got wrong? For example, you may want to check the function input arguments for having the correct type or length (in the case of iterable arguments) … Read more
Summary: Use “given string”.split() to split the given string by whitespace and store each word as an individual item in a list. Minimal Example: Problem Formulation 💬 Problem: Given a string, How will you split the string into a list of words using whitespace as a separator/delimiter? Let’s understand the problem with the help of a few examples: … Read more
💬 Question: How can I return a Matplotlib axis, plot, or figure object in Python so I can set some defaults and plot a figure quickly based on those defaults? Basic Solution To return a Matplotlib object from a function, follow these steps: 👇 Create a function my_plot(x, y, …) with arguments to customize your … Read more
This quick tutorial will show you how to return a value from a nested function. I assume you have your reasons for doing so. However, a word of warning: ⚡ Attention: The main reason you want to create “nested functions”, i.e., inner and outer functions in Python, is to use them for closures and decorators. … Read more
Problem Formulation and Solution Overview Let’s say, for this article, you have been asked to write Python code that reads a file and displays one (1) character from that file per iteration until all contents have been read in. 💬 Question: How would you write this code? Well, this task can be completed by using … Read more
Do you need to create a function that returns an integer value but you don’t know how? No worries, in sixty seconds, you’ll know! Go! 🔥🔥🔥 A Python function can return any object. To return an integer, use the built-in int() function. Or create your own function with an arbitrary expression within the function body … Read more