Tim Chase wrote:
Stripping off the exec() call makes it pretty transparent that you're
attempting (successfully on some platforms) to set the value of "4"
to "5".


But you have to do that in *another* Python session, because
the first one is broken in interesing ways, e.g.

>>> (lambda *fs: reduce(lambda f, g: lambda x: f(g(x)), fs))(*([lambda s: s[1::2]+s[-2::-2]]*54))('motcye;cye._n8fo_drs(d4+)vle=5 ua.8)(isedamr.ticspt spt rpi')
  File "<stdin>", line 1
SyntaxError: name 'fs' is local and global

>>> lambda z: 42
  File "<stdin>", line 1
SyntaxError: name 'z' is local and global

I never knew that error message existed! Is it even possible
to get it from a non-broken Python?

To answer my own question, apparently yes:

>>> def f(x):
...  global x
...
  File "<stdin>", line 1
SyntaxError: name 'x' is local and global

You learn something every day...

--
Greg
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