Python extension for GPIO This extension allows accessing the kernel GPIO Character device interface. I've been testing this extension against Fedora 26 on a Raspberry Pi, Kernel 4.11.
This was created partially as a response to the Raspberry Pi library not working on a vanilla kernel, as well as the deprecation of the sysfs gpio driver.
This extension is based on the gpio-utils in the Linux source.
At this time, there are four functions, gpio.init, gpio.set_values, gpio.get_values, and gpio.release.
gpio.init takes 4 arguments, the gpiochip to target, a numeric direction indicator, and two lists. The first list defines which gpio pins to request, while the second list sets the default values for those pins.
This function returns a file descriptor as an int. Example use: fd = gpio.init("gpiochip0", 1, [20, 21], [1, 0])
gpio.set_values takes two args, the file descriptor set earlier, and a list of values to set the pins to. Example: gpio.set_values(fd, [0, 1])
gpio.get_values takes the file descriptor and the number of pins to check. Example: gpio.get_values(fd, 2)
And finally gpio.release takes just the file descriptor, and releases the gpio pins. Example: gpio.release(fd)