Python Read Binary File Into Byte Array, The principal built-in types are numerics, sequences, mappings, classes, instances and exceptions. There are three main types of I/O: text I/O, binary I/O and raw I/O. Line [2] contains a list of integers assigned to the variable nums. Since versions of Python under 2. Jan 11, 2018 · Currently I am trying to use pygatt to send data to a ble characteristic but it use a bytearray as argument. Some operations need the binary data to be mutable. My input is a binary file, eg: $ xxd file. Aug 20, 2025 · Learn how to work with JSON data in Python using the json module. It does not include markup languages used exclusively as document file formats. Nov 4, 2025 · Learn how to read a binary file in Python using different methods.