*) compile_command("",eval) -> None ,
previously raised syntax error about "pass"

*) symbol must be eval or single, now
raises ValueError accordingly as specified in the 
documentation

patch both for 2.3 and 2.2 maint for codeop.py and 
test/test_codeop.py (beefed up)

(for Jython at the moment we use the test suite of 2.2 
maint, that's why this is relevant)

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Given that codeop has *never* lived up to its promise to
raise ValueError on 'exec', perhaps the docs should be fixed
rather than the code?  (I don't understand the point of
supporting anything but 'single', but...).  Certainly this
change *should not* be made on the 22-maint branch.

Can you check in your tests to both branches and port
Guido's codeop.py change?  Fixing up the docs gets you extra
points, I think  :-)

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committed:

test_codeop.py 1.6

test_codeop.py 1.3.12.1 (release22-maint)
codeop.py 1.5.16.1 (release22-maint)