[Python-Dev] Conditional For Statements

Terry Reedy tjreedy at udel.edu
Mon May 19 05:55:28 CEST 2008


"Ryan Hitchman" <hitchmanr at gmail.com> wrote in message 
news:e60c31470805181845u7fb0cafdsb0878db491eb7a3c at mail.gmail.com...
| I'd like to propose an addition to the for statement's syntax:
|
| for {variable} in {iterable} if {condition}:
|    {block}
|
| which is equivalent to
|
| for {variable} in {iterable}:
|    if not {condition}:
|        continue
|    {block}

Is this different from
for var in filter(lambda x: condition(x), iterable)):
?

| and
|
| for {variable} in filter(lambda: {condition}, iterable):
|    {block}

IDLE 3.0a5
>>> for i in filter(lambda i: i%2, range(10)):
 print(i)


1
3
5
7
9





More information about the Python-Dev mailing list