Python subprocess.CalledProcessError: Command 'adb devices' returned non-zero exit status 127

Question

I am using Ubuntu12.04, and I am seeing below error, it seems to me it's somehow python is trying to call adb command, but failed.

/bin/sh: 1: adb: not found
Traceback (most recent call last):
 `File "./test.py", line 1395, in <module>
    main()
  File "./test.py", line 1218, in main
    Device.wait_for_device(TIMEOUT, None, a.getport())
  File "./test.py", line 433, in wait_for_device
    if (len(a) == 1 and get_attached_devices()):
  File "./test.py", line 126, in get_attached_devices
    lines = subprocess.check_output(adb_rel_path + 'adb devices', shell =True).split('\n')
  File "/usr/lib/python2.7/subprocess.py", line 544, in check_output
    raise CalledProcessError(retcode, cmd, output=output)
   subprocess.CalledProcessError: Command 'adb devices' returned non-zero exit status 127

I followed the instructinos to instal pyadb: https://pypi.python.org/pypi/pyadb/0.1.1

But still it doens't work. I have no clue now. Does anyone know if I am missing any packages or program?

Solution

Exit code 127 means "command not found", are you sure you can execute abd from a standard terminal?