Hi,

Here is a function 'python-shell-send-block' to send a block to the
python interpreter in python mode, it's similar to
`python-shell-send-defun` but works on block.

The implementation and testing are included in that patch.

Please help review the changes.

[PATCH] New function 'python-shell-send-block' for python-mode

* lisp/progmodes/python.el: Add implemention of the function.
* test/lisp/progmodes/python-tests.el: Test case for the function.
* etc/NEWS: Document for the function.

Best Regards
Lin