py-python-command-args broke buffer execution (C-c C-c) and duplicate C-c ! invocation

[Yaroslav Halchenko]

Not sure if that is a reincarnation of #1076893 since it is probably to be related to more recent changes

Was testing current tip with splitting and spotted that I can't execute anything in *IPython* shell (e.g. via C-c C-c):

here is a complete ouput in *IPython* buffer:

Welcome to pylab, a matplotlib-based Python environment [backend: TkAgg].
For more information, type 'help(pylab)'.

In [1]:
In [2]:
In [3]:
In [4]: /usr/lib/python2.7/dist-packages/nose/util.py:14: DeprecationWarning: The compiler package is deprecated and removed in Python 3.x.
  from compiler.consts import CO_GENERATOR
option -i not recognized
Usage: ipython [options] [test] [...]

Options:
  -h, --help Show this message
  -v, --verbose Verbose output
  -q, --quiet Minimal output
  -f, --failfast Stop on first failure
  -c, --catch Catch control-C and display results
  -b, --buffer Buffer stdout and stderr during test runs

Examples:
  ipython - run default set of tests
  ipython MyTestSuite - run suite 'MyTestSuite'
  ipython MyTestCase.testSomething - run MyTestCase.testSomething
  ipython MyTestCase - run all 'test*' test methods
                                               in MyTestCase

An exception has occurred, use %tb to see the full traceback.

SystemExit: 2

To exit: use 'exit', 'quit', or Ctrl-D.
In [5]:

More interestingly: if I press C-c ! again -- similar errors reported in the *IPython* buffer but what is worse -- code buffer looses all Py* menus ... seems to switch to some "Shell-Compile" minor mode

[Yaroslav Halchenko (yarikoptic)]

ah -- now I remembered why my fingers insistend on C-c ! again -- with old python-mode, it would switch to the corresponding shell buffer (e.g. *IPython*). So, ideally, it should not crash and actually do nothing, but just switch to the shell (if shell-switch-buffers-on-execute)

[Andreas Roehler (a-roehler)]

Hmm, py-execute-... commands are meant to be used in source-buffer, not in shell
From shell RET sends the code.

Consider that invalid.