* On python3, stdin goes through a buffer that translates from raw bytes
to text. this interferes with pause as it (1) performs universal
newline conversion and therefore '\r' is turned into '\n' and (2) the
buffering prevents us from getting the typed characters immediately
(possibly a python3 bug?) Using the raw byte stream that's behind the
text decoder fixes these problems.
Unrelated cleanups:
* Use to_text instead of str for conversion into strings to avoid possible tracebacks
* Use either \r or \n as the end of a line.
Fixes#26278Resolves#26446
* Fix the task_vars parameter to not default to a mutable type (dict)
* Implement invocation in the base class's run() method have each action
module call the run() method's implemention in the base class.
* Return values from the action plugins' run() method takes the return
value from the base class run() method into account so that invocation
makes its way to the output.
Fixes#12869
In stable-1.9, the prompt string is passed to raw_input(), which prints
it without an extra \n. Here we're just print()ing it, so the \n would
be doubled.
Toshio Kuratomi
Dag Wieers
Brian Coca
Brian Coca
Toshio Kuratomi
Abhijit Menon-Sen
James Cammarata