Provide a mechanism where users can specify the python version which will be used to run the specs

[kashishm]

From @galacticgumshoe

In order to use Python 3 on mac, I have to use 'python3' command. Otherwise, if I just run 'python' command it runs as Python 2(default version). Getgauge package uses python command to run the tests, So it uses python 2 and mac doesn't recommend to change the default python to python3 because many Apple- or third-party software are dependent on that(https://docs.python.org/3/using/mac.html).

There should be a mechanism where users can specify the python version which will be used to run the specs. For more details refer #5.

[galacticgumshoe]

@kashishm 👍 for this enhancement! I was just noticing that when running my specs it was running as 2.7, even though I had written everything to be compliant with 3.5! Can't wait until this is available!

[kashishm]

Implemented this enhancement in Gauge-Python 0.1.5. The docs has info on how to specify a version.

Run the following commands to update the plugin:

gauge --update python
pip install --upgrade getgauge

[galacticgumshoe]

@kashishm this latest version works well! I was able to successfully execute gauge with the 3.5 python runner after setting this in my python.properties file. Awesome job!