Re: Getting a unknown word out of a list with no spaces

[Alexnb]

Alexandr N Zamaraev wrote:

>
Alexnb wrote:

>>>>>s = '--a href="/browse/brick"--brick--/a--'
>s
'--a href="/browse/brick"--brick--/a--'
>''.join('<%s>' % l if i % 2 == 1 else l for i, l in
enumerate(s.split('--')))
' /browse/brick brick '

I'm sorry, I don't think I was being clear. I replaced the <'s with -- so
it
would post online w/o actually making a link. I just need to know how to
get
the "brick" out.

1) if string really '--a href="/browse/brick"--brick--/a--'

>>s.split('--', 3)[2]

brick
2) if string ' /browse/brick brick '

>>s.split('>', 1)[1].split('<')[0]

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

Excellent! it works. But I have one more question. How can I test to see if
the first character of a string is what I want, for example, how can I test
to see if the first char of a string is "<"?

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[bearophileHUGS]

On Jul 17, 9:50 am, Alexnb:

how can I test to see if the first char of a string is "<"?

I suggest you to try the interactive shell:

>>"hello"[0]

'h'

>>"hello"[0] == "<"

False

>>"hello"[0] == "h"

True

>>"hello".startswith("h")

True

Bye,
bearophile

[Alexnb]

bearophileHUGS wrote:

>
On Jul 17, 9:50 am, Alexnb:

>how can I test to see if the first char of a string is "<"?

I suggest you to try the interactive shell:

>>>"hello"[0]

'h'

>>>"hello"[0] == "<"

False

>>>"hello"[0] == "h"

True

>>>"hello".startswith("h")

True

Bye,
bearophile
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really? That's just like C. I thought that it would fail because of the way
lists work. Thanks!

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[Fredrik Lundh]

Alexnb wrote:

>>>>"hello"[0]

'h'

>>>>"hello"[0] == "<"

False

>>>>"hello"[0] == "h"

True

>>>>"hello".startswith("h")

True

really? That's just like C. I thought that it would fail because of the way
lists work. Thanks!

what way?

the first three will fail if the string is empty.

>>""[0]

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
IndexError: string index out of range

if you may end up doing this on an empty string, use slicing instead:

>>"hello"[:1] == "<"

False

>>""[:1] == "<"

False

(startswith is perhaps more convenient, but method calls are rather
expensive in Python, so if you're in a hurry, it's often better to use
operators. when in doubt, benchmark the alternatives.)

</F>