Regression in py-execute-region

[Barry Warsaw]

Take the following code example:

def foo():
    def bar():
        return True
    return bar

In the past it was possible to highlight the middle two lines and run py-execute-region. This would have the effect of defining bar() at global scope, but that's okay since it was explicitly asked for. Now however you get this error in the Python buffer:

>>> Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/tmp/Python4249aED.py", line 8
    return True
         ^
IndentationError: expected an indented block

which perhaps makes sense, but isn't helpful. What python-mode used to do was, if the block to be executed was indented, it would still a "if True:" line indented to column zero in front of the region to be executed. This is essentially a no-op that just makes the indented region valid syntactically. Perhaps this could be resurrected?