Adafruit PureIO

Adafruit PureIO provides pure Python (i.e., no native extensions) access to Linux IO, specifically for I2C and SPI buses. It serves as a drop-in replacement for the `smbus` and `spidev` modules, making it suitable for embedded systems like Raspberry Pi without requiring compilation. The library is actively maintained by Adafruit, with releases typically focusing on infrastructure updates, bug fixes, and compatibility improvements.