Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail
From: Peter Otten <__peter__@web.de>
Newsgroups: comp.lang.python
Subject: Re: why for loop print only once after add if statement
Date: Sat, 28 May 2016 13:54:10 +0200
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Xref: csiph.com comp.lang.python:109202

jobmattcon@gmail.com wrote:

> for item, i in enumerate(aa)
>   print item
> 
> this writing, it can print all values
> 
> for item, i in enumerate(aa)
>   if item == findit:
>     print item
> 
> this only print the first value, means it only print once then not print
> again,

Assuming

aa = ["foo", "bar", "baz"]

and

findit = "bar"

the print statement will only be executed when findit == item.

First iteration of your for loop:

item = "foo"
if "foo" == "bar": # False
   print "foo"     # not executed, nothing printed

Second iteration:

item = "bar"
if "bar" == "bar": # True
    print "bar"    # prints bar

Third iteration:

item = "baz"
if "baz" == "bar": # False
    print "baz"    # not executed, nothing printed

> where is wrong?

This depends on what you want to achieve. Can you tell us?