If you are using python - edev

From the docs:

This package provides bindings to the generic input event interface in Linux. The evdev interface serves the purpose of passing events generated in the kernel directly to userspace through character devices that are typically located in /dev/input/.

This package also comes with bindings to uinput, the userspace input subsystem. Uinput allows userspace programs to create and handle input devices that can inject events directly into the input subsystem.

In other words, python-evdev allows you to read and write input events on Linux. An event can be a key or button press, a mouse movement or a tap on a touchscreen.

and later on the Tutorial page...

Reading events from multiple devices (using select)

>>> from evdev import InputDevice
>>> from select import select

# A mapping of file descriptors (integers) to InputDevice instances.
>>> devices = map(InputDevice, ('/dev/input/event1', '/dev/input/event2'))
>>> devices = {dev.fd: dev for dev in devices}

>>> for dev in devices.values(): print(dev)
device /dev/input/event1, name "Dell Dell USB Keyboard", phys "usb-0000:00:12.1-2/input0"
device /dev/input/event2, name "Logitech USB Laser Mouse", phys "usb-0000:00:12.0-2/input0"

>>> while True:
...    r, w, x = select(devices, [], [])
...    for fd in r:
...        for event in devices[fd].read():
...            print(event)
event at 1351116708.002230, code 01, type 02, val 01
event at 1351116708.002234, code 00, type 00, val 00
event at 1351116708.782231, code 04, type 04, val 458782
event at 1351116708.782237, code 02, type 01, val 01

You can handle each device separately.

If you are using python - evdev

From the docs:

This package provides bindings to the generic input event interface in Linux. The evdev interface serves the purpose of passing events generated in the kernel directly to userspace through character devices that are typically located in /dev/input/.

This package also comes with bindings to uinput, the userspace input subsystem. Uinput allows userspace programs to create and handle input devices that can inject events directly into the input subsystem.

In other words, python-evdev allows you to read and write input events on Linux. An event can be a key or button press, a mouse movement or a tap on a touchscreen.

and later on the Tutorial page...

Reading events from multiple devices (using select)

>>> from evdev import InputDevice
>>> from select import select

# A mapping of file descriptors (integers) to InputDevice instances.
>>> devices = map(InputDevice, ('/dev/input/event1', '/dev/input/event2'))
>>> devices = {dev.fd: dev for dev in devices}

>>> for dev in devices.values(): print(dev)
device /dev/input/event1, name "Dell Dell USB Keyboard", phys "usb-0000:00:12.1-2/input0"
device /dev/input/event2, name "Logitech USB Laser Mouse", phys "usb-0000:00:12.0-2/input0"

>>> while True:
...    r, w, x = select(devices, [], [])
...    for fd in r:
...        for event in devices[fd].read():
...            print(event)
event at 1351116708.002230, code 01, type 02, val 01
event at 1351116708.002234, code 00, type 00, val 00
event at 1351116708.782231, code 04, type 04, val 458782
event at 1351116708.782237, code 02, type 01, val 01

You can handle each device separately.

If you are using python - edev

From the docs:

This package provides bindings to the generic input event interface in Linux. The evdev interface serves the purpose of passing events generated in the kernel directly to userspace through character devices that are typically located in /dev/input/.

This package also comes with bindings to uinput, the userspace input subsystem. Uinput allows userspace programs to create and handle input devices that can inject events directly into the input subsystem.

In other words, python-evdev allows you to read and write input events on Linux. An event can be a key or button press, a mouse movement or a tap on a touchscreen.

If you are using python - edev

From the docs:

This package provides bindings to the generic input event interface in Linux. The evdev interface serves the purpose of passing events generated in the kernel directly to userspace through character devices that are typically located in /dev/input/.

This package also comes with bindings to uinput, the userspace input subsystem. Uinput allows userspace programs to create and handle input devices that can inject events directly into the input subsystem.

In other words, python-evdev allows you to read and write input events on Linux. An event can be a key or button press, a mouse movement or a tap on a touchscreen.

and later on the Tutorial page...

Reading events from multiple devices (using select)

>>> from evdev import InputDevice
>>> from select import select

# A mapping of file descriptors (integers) to InputDevice instances.
>>> devices = map(InputDevice, ('/dev/input/event1', '/dev/input/event2'))
>>> devices = {dev.fd: dev for dev in devices}

>>> for dev in devices.values(): print(dev)
device /dev/input/event1, name "Dell Dell USB Keyboard", phys "usb-0000:00:12.1-2/input0"
device /dev/input/event2, name "Logitech USB Laser Mouse", phys "usb-0000:00:12.0-2/input0"

>>> while True:
...    r, w, x = select(devices, [], [])
...    for fd in r:
...        for event in devices[fd].read():
...            print(event)
event at 1351116708.002230, code 01, type 02, val 01
event at 1351116708.002234, code 00, type 00, val 00
event at 1351116708.782231, code 04, type 04, val 458782
event at 1351116708.782237, code 02, type 01, val 01

You can handle each device separately.