Chris💬 Question: How to Decode a Hex String in Python? Decode Hex String To decode a hexadecimal Python string, use these two steps: Here’s how you can chain the two methods in a single line of Python code: Here’s why you use the first part of the expression—to obtain a bytes object first: ⭐ Recommended … Read more
This tutorial will show you how to convert an But let’s quickly recap what an octal escape sequence is in the first place! 👇 What Is An Octal Escape Sequence?💡 An Octal Escape Sequence is a backslash followed by 1-3 octal digits (0-7) such as \150 which encodes the ASCII character ‘h’. Each octal escape … Read more
Problem Formulation In this article, you’ll learn how to convert binary string (values) to an ASCII string in Python. For example, you may want to convert the binary string: 0110100001100101011011000110110001101111001000000111011101101111011100100110110001100100 to the ASCII text: hello world Using a simple Python script! 💬 Question: How would we write Python code to perform the binary to ASCII … Read more
I ask every Finxter freelancer student the following question: 👉 “What’s your goal as a Python freelancer?” A common answer pattern I get is as follows — check if a similar outlook applies to you: 👇 “Stuck at a Job That Pays The Bills” “Well, I’m 43 and facing a mid-life crisis. Stuck in a … Read more
Problem Formulation Given a string in the octal form: How to convert the octal string to an integer in Python? For example, you want to convert the octal string ‘o10’ to the decimal integer 8. Here are a few other examples: Octal String Decimal ‘0o0’ 0 ‘0o4’ 4 ‘0o10’ 8 ‘0o14’ 12 ‘0o20’ 16 ‘0o77’ … Read more
💬 Question: How to convert a hexadecimal string such as 02af01ff00 to a normal string using the Base64 format in Python? 👉 Short answer: Use the following fancy one-liner expression to convert the hex string s to a Base64-encoded Python string: base64.b64encode(bytes.fromhex(s)).decode(). For the long answer, keep reading! 🥸 If you’re like me, you may … Read more
In this article, I’ll show you three simple habits to get way more done, have a much easier and stress-free life, and make more money. Almost guaranteed. Based on science! But there’s a catch: these habits are often tough to implement for employees. I know because I have been there and done that. When I finally created … Read more
Problem Formulation 💬 Question: Given a binary string in your Python script, such as b’this is a binary string’. How to write the binary string to a file in Python? For example, you may have tried a code snippet like this that will not work with file.write(): Because this yields a TypeError: Traceback (most recent … Read more
Hex String as Binary Data To convert a hex string such as ‘FF0001AF’ to binary data, use the binascii.unhexlify(hex_str) function that returns the binary data represented by the hexadecimal string. Note that this converts two hex string digits to one byte, i.e., hex string ‘F0’ is converted to the byte representation 11110000, or in binary … Read more
💬 Question: Given a Python list of hexadecimal strings such as [‘ff’, ‘ef’, ‘0f’, ‘0a’, ’93’]. How to convert it to a list of integers in Python such as [255, 239, 15, 10, 147]? Easiest Answer The easiest way to convert a list of hex strings to a list of integers in Python is the … Read more
What Is Big/Little Endian? Computers perform computations on data that is represented with bytes, i.e., sequences of 0s and 1s. A computer program manipulates data by loading data from memory (RAM, Cache, Disk, SSD), performing computations based on that data, and storing the resulting data back into the memory. A computer program loads and stores … Read more
💬 Question: How to convert a hexadecimal string such as “00-ff-ef-01-0f-0a-1a” to a NumPy array of integers [ 0 255 239 1 15 10 26]? Method 1: Hex String to List to NumPy Array You can solve this problem easily by breaking it into two easier ones: Here’s the code: Method 2: Use NumPy fromiter() … Read more