python plugin

Fatal Python error: Py_Initialize: Unable to get the locale encoding
ImportError: No module named 'encodings'

Current thread 0x00007f0183925700 (most recent call first):
Aborted (core dumped)
Fatal Python error: Py_Initialize: Unable to get the locale encoding
ImportError: No module named 'encodings'

Current thread 0x00007f2bac56c700 (most recent call first):
Aborted (core dumped)
Traceback (most recent call last):
  File "/usr/bin/snapcraft", line 31, in <module>
    snapcraft.main.main()
  File "/usr/lib/python3/dist-packages/snapcraft/main.py", line 236, in main
    return run(args, project_options)
  File "/usr/lib/python3/dist-packages/snapcraft/main.py", line 295, in run
    lifecycle.snap(project_options, args['<directory>'], args['--output'])
  File "/usr/lib/python3/dist-packages/snapcraft/internal/lifecycle.py", line 319, in snap
    snap = execute('prime', project_options)
  File "/usr/lib/python3/dist-packages/snapcraft/internal/lifecycle.py", line 107, in execute
    _Executor(config, project_options).run(step, part_names)
  File "/usr/lib/python3/dist-packages/snapcraft/internal/lifecycle.py", line 166, in run
    self._run_step(step, part, part_names)
  File "/usr/lib/python3/dist-packages/snapcraft/internal/lifecycle.py", line 202, in _run_step
    getattr(part, step)()
  File "/usr/lib/python3/dist-packages/snapcraft/internal/pluginhandler/__init__.py", line 399, in build
    script_runner.run(scriptlet=build_scriptlet)
  File "/usr/lib/python3/dist-packages/snapcraft/internal/pluginhandler/_scriptlets.py", line 43, in run
    run([scriptlet_path], cwd=self._builddir)
  File "/usr/lib/python3/dist-packages/snapcraft/internal/common.py", line 72, in run
    subprocess.check_call(['/bin/sh', f.name] + cmd, **kwargs)
  File "/usr/lib/python3.5/subprocess.py", line 581, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/bin/sh', '/tmp/tmp3xu_nj87', '/tmp/tmplxy2fq2s']' returned non-zero exit status 134