Re: Regular Expressions Quick Question

[Rajanikanth Jammalamadaka]

hi!

Try this:

>>lis=['t','tes','test ','testing']
>>[elem for elem in lis if re.compile("^te ").search(e lem)]

['tes', 'test', 'testing']

Cheers,

Raj

On Wed, Jul 9, 2008 at 12:13 AM, Lamonte Harris <pyth0nc0d3r@gm ail.comwrote:

Alright, basically I have a list of words in a file and I load each word
from each line into the array. Then basically the question is how do I
check if the input word matches multiple words in the list.
>
Say someone input "test", how could I check if that word matches these list
of words:
>
test
testing
tested
>
Out of the list of
>
Hello
blah
example
test
ested
tested
testing
>
I want it to loop then check if the input word I used starts any of the
words in the list so if I typed 'tes'
>
Then:
>
test
testing
testing
>
would be appended to a new array.
>
I'm unsure how to do this in python.
>
Thanks in advanced.
>
--

http://mail.python.org/mailman/listinfo/python-list

>

--
"For him who has conquered the mind, the mind is the best of friends;
but for one who has failed to do so, his very mind will be the
greatest enemy."

Rajanikanth

[Bruno Desthuilliers]

Re: Regular Expressions Quick Question

Rajanikanth Jammalamadaka a écrit :
(top-post corrected - Please, Rajanikanth, learn to trim&quote properly,
and by all means avoid top-posting)

>
On Wed, Jul 9, 2008 at 12:13 AM, Lamonte Harris <pyth0nc0d3r@gm ail.comwrote:

>Alright, basically I have a list of words in a file and I load each word
>from each line into the array.

<OP>
I assume you meant 'list' ?
</OP>

Then basically the question is how do I

>check if the input word matches multiple words in the list.
>>
>Say someone input "test", how could I check if that word matches these list
>of words:
>>
>test
>testing
>tested
>>
>Out of the list of
>>
>Hello
>blah
>example
>test
>ested
>tested
>testing
>>
>I want it to loop then check if the input word I used starts any of the
>words in the list so if I typed 'tes'
>>
>Then:
>>
>test
>testing
>testing

<OP>
I assume you meant:
test
tested
testing
</OP>

>would be appended to a new array.

hi!
>
Try this:
>

>>>lis=['t','tes','test ','testing']
>>>[elem for elem in lis if re.compile("^te ").search(e lem)]

Using a regexp for this is total overkill. But please at least use the
proper regexp, and use re.compile correctly:

exp = re.compile(r'^t es')
found = [word for word in lis if exp.match(word)]

But you just don't need a regexp for this - str.startswith is your friend:

words = ['Hello', 'blah', 'example', 'test', 'ested', 'tested', 'testing']
found = [word for word in words if word.starswith( 'tes')]
assert found == ['test', 'tested', 'testing']

HTH

[Paul McGuire]

Re: Regular Expressions Quick Question

On Jul 9, 2:24 am, "Rajanikant h Jammalamadaka" <rajanika...@gm ail.com>
wrote:

hi!
>
Try this:
>

>lis=['t','tes','test ','testing']
>[elem for elem in lis if re.compile("^te ").search(e lem)]

>
['tes', 'test', 'testing']
>
Cheers,
>
Raj
>
>
>
>
>
On Wed, Jul 9, 2008 at 12:13 AM, Lamonte Harris <pyth0nc0...@gm ail.comwrote:

Alright, basically I have a list of words in a file and I load each word
from each line into the array.  Then basically the question is how doI
check if the input word matches multiple words in the list.

>

Say someone input "test", how could I check if that word matches these list
of words:

>

test
testing
tested

>

Out of the list of

>

Hello
blah
example
test
ested
tested
testing

>

I want it to loop then check if the input word I used starts any of the
words in the list so if I typed 'tes'

>

Then:

>

test
testing
testing

>

would be appended to a new array.

>

I'm unsure how to do this in python.

>

Thanks in advanced.

>

--
http://mail.python.org/mailman/listinfo/python-list

>
--
"For him who has conquered the mind, the mind is the best of friends;
but for one who has failed to do so, his very mind will be the
greatest enemy."
>
Rajanikanth- Hide quoted text -
>
- Show quoted text -

Give the built-in string functions a try before resorting to the re
howitzers:

>>lis=['t','tes','test ','testing']
>>[elem for elem in lis if elem.startswith ("te")]

['tes', 'test', 'testing']

-- Paul