gliderlabs/docker-alpine

Python2 cannot read keyboard input device

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#206 aberto em 22 de ago. de 2016

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Description

I'm trying to read usb keyboard inside alpine docker container.

Run container

# docker run --privileged --rm -it -v /dev/input:/dev/input alpine sh

/ # ls /dev/input/by-path/
pci-0000:00:01.2-usb-0:1:1.0-event-mouse  platform-i8042-serio-1-event-mouse
pci-0000:00:01.2-usb-0:1:1.0-mouse        platform-i8042-serio-1-mouse
platform-i8042-serio-0-event-kbd          platform-pcspkr-event-spkr

Run python2 (Raise error)

/ # apk add -U python
/ # python
Python 2.7.12 (default, Jun 29 2016, 08:57:23)
[GCC 5.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> kbd = open('/dev/input/by-path/platform-i8042-serio-0-event-kbd', 'rb')
>>> kbd.read(16)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
IOError: [Errno 22] Invalid argument
>>> exit()

Run python3 (No error)

/ # apk add python3
/ # python3
Python 3.5.1 (default, May 30 2016, 16:01:04)
[GCC 5.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> kbd = open('/dev/input/by-path/platform-i8042-serio-0-event-kbd', 'rb')
>>> kbd.read(16)
^C

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