def test_keyencoding(self):
d = {}
key = 'Pöp'
# the default keyencoding is utf-8
shelve.Shelf(d)[key] = [1]
self.assertIn(key.encode('utf-8'), d)
# but a different one can be given
shelve.Shelf(d, keyencoding='latin-1')[key] = [1]
self.assertIn(key.encode('latin-1'), d)
# with all consequences
s = shelve.Shelf(d, keyencoding='ascii')
self.assertRaises(UnicodeEncodeError, s.__setitem__, key, [1])
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