* Pull some logic into a Validator base class
* Add a PythonPackageValidator that checks directories are python
packages
* Handle files that have python syntax errors
* Report modules that do not have a .py extension
The network module will now log a message when it connects to a remote host
successfully and specify the transport used. It will also log a message
when the module discconnect() method is called.
Earlier versions of EOS that do not support config sessions would
create an exception. This fix will now check if the device supports
sessions and if it doesn't, it will fall back to not using sessions
* Fix unbound method call for JSONEncoder
The way it is currently it will lead to unbound method error
```python
In [1]: import json
In [2]: json.JSONEncoder.default('object_here')
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-2-872fdacfda50> in <module>()
----> 1 json.JSONEncoder.default('object_here')
TypeError: unbound method default() must be called with JSONEncoder instance as first argument (got str instance instead)
```
But what is really wanted is to let the json module to raise the "is not serializable error" which demands a bounded instance of `JSONEncoder()`
```python
In [3]: json.JSONEncoder().default('object_here')
---------------------------------------------------------------------------
TypeError: 'object_here' is not JSON serializable
```
BTW: I think it would try to call `.to_json` of object before raising as it is a common pattern.
* Calling JSONEncoder bounded `default` method using super()
This is better API as the booleans could conflict with each other.
If the config value is a string, make sure to return it as a text string
rather than a byte string.
As recently there was back-and-forth with this hardcoded value
(0.001 -> 0.01 -> 0.005), obviousely the optimal value for it depends on
Ansible usage scanario and is better to be configurable.
This patch adds a new config option in DEFAULT section,
`internal_poll_interval`, with default of 0.001 corresponding to the
value hardcoded in Ansible v2.1.
This config option is then used instead of hardcoded values where
needed.
Related GH issue: 14219
