In part two, we will look at how to parse complex image headers and extract metadata manually.
The struct module is the "translator" between Python variables and binary formats.
struct.pack('i', 42) : Turns the integer 42 into a 4-byte sequence. binarni_soubory_1.zip
struct.unpack('f', data) : Turns 4 bytes back into a floating-point number. 🔍 Breaking Down the Zip Contents
The files inside binarni_soubory_1.zip demonstrate three core concepts: In part two, we will look at how
Working with binary files in Python (or C++) often feels like a dark art compared to the simplicity of text files. This post breaks down the basics of handling raw data using the binarni_soubory_1.zip example set. 💾 Why Binary? Text files are for humans; binary files are for machines. : No overhead from encoding/decoding.
: Storing database-style entries without separators. struct
: Why the order of bytes matters (Big-endian vs. Little-endian). 💡 Pro Tip