variable assignment in "while" loop
Isaac To
kkto at csis.hku.hk
Wed Jul 30 01:04:05 EDT 2003
>>>>> "Anders" == Anders J Munch <andersjm at dancontrol.dk> writes:
Anders> "Aahz" <aahz at pythoncraft.com> wrote:
>> Peter usually gives a good answer, but this time there's a better
>> answer:
Anders> With a bug, but if we combine Peter's answer with yours we get
Anders> an even better answer:
Anders> def fetch_iter(mydbcursor): while 1: info =
Anders> mydbcursor.fetchone() if not info: break yield info
Or perhaps use a function instead...
def while_iter(f):
while True:
result = f()
if (not result):
return
yield result
Then you can convert
while info = mydbcursor.fetchone():
print "Information: "+str(info)
trivially to
for info in while_iter(lambda: mydbcursor.fetchone()):
print "Information: "+str(info)
Regards,
Isaac.
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