[meta-virtualization] docker-compose fails with "ImportError: No module named 'tty'"

[Valerio De Benedetto]

Hi, I've made a very simple rocko image for an Intel Quark-based device 
that includes docker and docker-compose. My problem is that running 
docker-compose fails with this message:

Traceback (most recent call last):
   File "/usr/bin/docker-compose", line 11, in <module>
     load_entry_point('docker-compose==1.16.1', 'console_scripts', 
'docker-compose')()
   File 
"/usr/lib/python3.5/site-packages/setuptools-36.2.7-py3.5.egg/pkg_resources/__init__.py", 
line 564, in load_entry_point
   File 
"/usr/lib/python3.5/site-packages/setuptools-36.2.7-py3.5.egg/pkg_resources/__init__.py", 
line 2662, in load_entry_point
   File 
"/usr/lib/python3.5/site-packages/setuptools-36.2.7-py3.5.egg/pkg_resources/__init__.py", 
line 2316, in load
   File 
"/usr/lib/python3.5/site-packages/setuptools-36.2.7-py3.5.egg/pkg_resources/__init__.py", 
line 2322, in resolve
   File "/usr/lib/python3.5/site-packages/compose/cli/main.py", line 58, 
in <module>
     from dockerpty.pty import PseudoTerminal, RunOperation, ExecOperation
   File "/usr/lib/python3.5/site-packages/dockerpty/__init__.py", line 
17, in <module>
     from dockerpty.pty import PseudoTerminal, RunOperation, 
ExecOperation, exec_create
   File "/usr/lib/python3.5/site-packages/dockerpty/pty.py", line 23, in 
<module>
     import dockerpty.tty as tty
   File "/usr/lib/python3.5/site-packages/dockerpty/tty.py", line 21, in 
<module>
     import tty
ImportError: No module named 'tty'

I've satisfied all the requirements in README and tried both with rocko 
and master.


PS: Sorry for the previous mail, but It was not indicated anywhere that 
I had to subscribe first

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