JSON decode error when running specs

[sriv]

Description

gauge run specs spits out a JSON decode warning.

Traceback (most recent call last):
  File "check_and_install_getgauge.py", line 47, in <module>
    assert_versions()        
  File "check_and_install_getgauge.py", line 31, in assert_versions
    python_plugin_version = get_version()
  File "check_and_install_getgauge.py", line 13, in get_version
    data = json.loads(str(out.decode()))
  File "/usr/lib/python2.7/json/__init__.py", line 339, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python2.7/json/decoder.py", line 364, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python2.7/json/decoder.py", line 382, in raw_decode
    raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded

Steps to reproduce

1. gauge init python
2. gauge run specs
3. Observe console

Information that will help us debug

• Gauge version -

Gauge version: 1.0.4
Commit Hash: 90b8b48

• Gauge Python plugin version
  0.3.5.nightly-2018-12-05
• Python version Python 3.6.7
• getgauge package version, run pip3 show getgauge to get it

Name: getgauge
Version: 0.3.4
Summary: Enables Python support for Gauge
Home-page: https://github.com/getgauge/gauge-python
Author: Gauge Team
Author-email: getgauge@outlook.com
License: MIT
Location: /home/steam/.local/lib/python3.6/site-packages
Requires: redBaron, parso, six, grpcio, protobuf, ptvsd

• OS information Linux, debian based

[gaugebot]

The fix should be available in nightly >= 24-12-2018