On 03/25/12 07:18, Alexander Blinne wrote:
I am not sure I understand your argument. The doc section states that
" [...] in Python you’re forced to write this:
while True:
line = f.readline()
if not line:
break
... # do something with line".
That simply isn't true as one can simply write:
for line in f:
#do stuff
I think the complaint was backed by a bad example. Perhaps a DB
example works better. With assignment allowed in an evaluation,
you'd be able to write
while data = conn.fetchmany():
for row in data:
process(row)
whereas you have to write
while True:
data = conn.fetchmany()
if not data: break
for row in data:
process(row)
Granted, this can be turned into an iterator with a yield, making
the issue somewhat moot:
def db_iter(conn, *args, **kwargs):
while True:
data = conn.fetchmany(rows, *args, **kwargs)
if not data: break
for row in data:
yield row
for row in db_iter(conn):
proecss(row)
-tkc
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