def maker():
for i in range(100):
yield i
foo:4: Warning: 'yield' will become a reserved keyword in the future
File "foo", line 4
yield i
^
SyntaxError: invalid syntax
Python 2.2.2
???
-
def maker():
for i in range(100):
yield i
foo:4: Warning: 'yield' will become a reserved keyword in the future
File "foo", line 4
yield i
^
SyntaxError: invalid syntax
Python 2.2.2
???
-
Re: About that 'yield' word
Tobiah wrote:
[color=blue]
>
> def maker():
> for i in range(100):
> yield i
>
>
> foo:4: Warning: 'yield' will become a reserved keyword in the future
> File "foo", line 4
> yield i
> ^
> SyntaxError: invalid syntax
>
> Python 2.2.2
>
>
> ???[/color]
You seem to have omitted the necessary statement at the start
of your module (in Python 2.2):
from __future__ import generators
Alternatively, upgrade to 2.3, and you won't need that statement
any more.
Alex
-
Re: About that 'yield' word
Tobiah wrote:[color=blue][color=green]
> >
> > def maker():
> > for i in range(100):
> > yield i
> >
> >
> > foo:4: Warning: 'yield' will become a reserved keyword in the future
> > File "foo", line 4
> > yield i
> > ^
> > SyntaxError: invalid syntax
> >
> > Python 2.2.2
> >
> >
> > ???[/color][/color]
I guess this was just thrown together as an example of "yield", rather
than real code, but:
def maker():
return range(100)
seems a little less contorted...
--
David Eppstein http://www.ics.uci.edu/~eppstein/
Univ. of California, Irvine, School of Information & Computer Science
Comment
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Re: About that 'yield' word
|Tobiah wrote:
|> > def maker():
|> > for i in range(100):
|> > yield i
David Eppstein <eppstein@ics.u ci.edu> wrote previously:
|I guess this was just thrown together as an example of "yield", rather
|than real code, but:
|def maker():
| return range(100)
And less contorted still is:
xrange(100)
:-).
--
Keeping medicines from the bloodstreams of the sick; food from the bellies
of the hungry; books from the hands of the uneducated; technology from the
underdeveloped; and putting advocates of freedom in prisons. Intellectual
property is to the 21st century what the slave trade was to the 16th.
Comment
-
Re: About that 'yield' word
>> > def maker():[color=blue][color=green][color=darkred]
>> > for i in range(100):
>> > yield i
>> >[/color][/color][/color]
David> I guess this was just thrown together as an example of "yield",
David> rather than real code, but:
David> def maker():
David> return range(100)
David> seems a little less contorted...
Maybe so, but it behaves differently so direct comparisons aren't
particularly helpful:
[color=blue][color=green][color=darkred]
>>> def maker():[/color][/color][/color]
.... for i in range(100):
.... yield i
....[color=blue][color=green][color=darkred]
>>> def maker1():[/color][/color][/color]
.... return range(100)
....[color=blue][color=green][color=darkred]
>>> maker()[/color][/color][/color]
<generator object at 0x1d80f8>[color=blue][color=green][color=darkred]
>>> maker1()[/color][/color][/color]
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99]
--
Andrew Koenig, ark@acm.org
Comment
-
Re: About that 'yield' word
In article <yu994qynhi6q.f sf@tinker.resea rch.att.com>,
Andrew Koenig <ark@acm.org> wrote:
[color=blue]
> David> def maker():
> David> return range(100)
>
> David> seems a little less contorted...
>
> Maybe so, but it behaves differently so direct comparisons aren't
> particularly helpful:[/color]
I considered mentioning iter(range(100) ) instead but I couldn't think of
an actual reason one would care about the difference.
--
David Eppstein http://www.ics.uci.edu/~eppstein/
Univ. of California, Irvine, School of Information & Computer Science
Comment
Comment