PEP 288: Generator Attributes
Denis S. Otkidach
ods at strana.ru
Wed Dec 4 04:36:38 EST 2002
On Wed, 4 Dec 2002, Raymond Hettinger wrote:
RH> So, the behavior of mygen() is radically different depending
RH> on whether it
RH> is called with iter(mygen()) or mygen.iter(). It looks
RH> like the parameter
RH> string is being asked to pull double duty. How would you
RH> code an equivalent
RH> to:
RH>
RH> def logger(afile, author):
RH> while True:
RH> print >> file, __self__.data, ':changed by', author
RH> yield None
class logger(object):
def __init__(self, afile, author):
self.afile = afile
self.author = author
self.data = 'default data'
self.next = self._gen().next
def _gen(self):
while True:
print >> self.afile, self.data, ':changed by', self.author
yield None
--
Denis S. Otkidach
http://www.python.ru/ [ru]
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