[Tutor] print out lines that start with a word
Can anyone tell me what I've done wrong in this
script.
I'm trying to get only the lines that start with
"This" for a text file.
Here's what I wrote:
>>> import re
>>> f = open('c:/lines.txt').readlines()
>>> for line in f:
match = re.search('^This',f)
if line == match:
print match
here's the error message I got:
Traceback (most recent call last):
File "", line 2, in -toplevel-
match = re.search('^This',f)
File "C:\Python24\lib\sre.py", line 134, in search
return _compile(pattern, flags).search(string)
TypeError: expected string or buffer
Thanks in advance
__
Do you Yahoo!?
Read only the mail you want - Yahoo! Mail SpamGuard.
http://promotions.yahoo.com/new_mail
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] error message
I'm dping something very simple in RE.
Lets say I'm trying to match an American Phone number
I write the code this way and try to match it:
import re
string = 'My phone is 410-995-1155'
pattern = r'\d{3}-\d{3}-\d{4}'
re.match(pattern,string).group()
but I get this error message
Traceback (most recent call last):
File "C:/Python24/findphone", line 4, in -toplevel-
re.match(pattern,string).group()
AttributeError: 'NoneType' object has no attribute 'group'
__
Do you Yahoo!?
Take Yahoo! Mail with you! Get it on your mobile phone.
http://mobile.yahoo.com/maildemo
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] writing list to new file
How would I save a list to a new file
for example:
If line.startswith('XXX'):
save list to new file
But I get errors saying only stings can be saved this
way.
__
Do you Yahoo!?
Meet the all-new My Yahoo! - Try it today!
http://my.yahoo.com
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] Value Error message
Trying to scrape some headlines off a newspaper with
this code:
import urllib, re
pattern = re.compile("""(.*)""", re.DOTALL)
page =
urllib.urlopen("http://www.startribune.com";).read()
for (headline, code, description) in
pattern.findall(page):
print (headline, code, description)
I'm getting the error below and can't find anything in
the documentation. Suggestions
Traceback (most recent call last):
File "C:/Python24/Stribwebscrape.py", line 13, in ?
for (headline, code, description) in
pattern.findall(page):
ValueError: need more than 2 values to unpack
__
Do you Yahoo!?
Meet the all-new My Yahoo! - Try it today!
http://my.yahoo.com
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] Value Error solved. Another question
Ignore my first posting. Here's what I'm trying to do.
I want to extract headlines from a newspaper's website
using this code. It works, but I want to match the
second group in (.*) and print
that out.
Sugguestions
import urllib, re
pattern = re.compile("""(.*)""", re.DOTALL)
page =
urllib.urlopen("http://www.startribune.com";).read()
for headline in pattern.findall(page):
print headline
__
Do you Yahoo!?
Yahoo! Mail - You care about security. So do we.
http://promotions.yahoo.com/new_mail
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] count words
I know that you can do this to get a count of home
many times a word appears in a file
f = open('text.txt').read()
print f.count('word')
Other than using a several print statments to look for
seperate words like this, is there a way to do it so
that I get a individual count of each word:
word1 xxx
word2 xxx
words xxx
etc.
__
Do you Yahoo!?
Yahoo! Mail - Find what you need with new enhanced search.
http://info.mail.yahoo.com/mail_250
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
RE: [Tutor] count words
Thanks to everyone who replied to my post. All of your
suggestions seem to work. My thanks
Ron
--- Ryan Davis <[EMAIL PROTECTED]> wrote:
> You could use split() to split the contents of the
> file into a list of strings.
>
> ###
> >>> x = 'asdf foo bar foo'
> >>> x.split()
> ['asdf', 'foo', 'bar', 'foo']
> ###
>
> Here's one way to iterate over that to get the
> counts. I'm sure there are dozens.
> ###
> >>> x = 'asdf foo bar foo'
> >>> counts = {}
> >>> for word in x.split():
> ... counts[word] = x.count(word)
> ...
> >>> counts
> {'foo': 2, 'bar': 1, 'asdf': 1}
> ###
> The dictionary takes care of duplicates. If you are
> using a really big file, it might pay to eliminate
> duplicates from the list
> before running x.count(word)
>
> Thanks,
> Ryan
>
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Ron
> Nixon
> Sent: Tuesday, February 15, 2005 11:22 AM
> To: tutor@python.org
> Subject: [Tutor] count words
>
>
> I know that you can do this to get a count of home
> many times a word appears in a file
>
>
> f = open('text.txt').read()
> print f.count('word')
>
> Other than using a several print statments to look
> for
> seperate words like this, is there a way to do it so
> that I get a individual count of each word:
>
> word1 xxx
> word2 xxx
> words xxx
>
> etc.
>
>
>
>
>
> __
> Do you Yahoo!?
> Yahoo! Mail - Find what you need with new enhanced
> search.
> http://info.mail.yahoo.com/mail_250
> ___
> Tutor maillist - Tutor@python.org
> http://mail.python.org/mailman/listinfo/tutor
>
> ___
> Tutor maillist - Tutor@python.org
> http://mail.python.org/mailman/listinfo/tutor
>
__
Do you Yahoo!?
The all-new My Yahoo! - Get yours free!
http://my.yahoo.com
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] RE help
Trying to scrape a newspaper site for articles using
this code whic ws done with help from the list:
import urllib, re
pattern = re.compile("""(.*).""", re.DOTALL)
page
=urllib.urlopen("http://www.startribune.com";).read()
for headline, body in pattern.findall(page):
print body
It should grab articles from this:
Sid Hartman:
Franchise could be movedIf Reggie Fowler
and his business partners from New Jersey are approved
to buy the Vikings franchise from Red McCombs, it is
my opinion the franchise remains in danger of
eventually being relocated.
and give me this: Sid Hartman: Franchise could be
movedIf Reggie Fowler and his business
partners from New Jersey are approved to buy the
Vikings franchise from Red McCombs, it is my opinion
the franchise remains in danger of eventually being
relocated.
Instead it gives me this:Boxerjam. from
this :
href="http://www.startribune.com/stories/1559/4773140.html";>Boxerjam.
I know the re works in other programs I've tried. Is
there something different about re's in Python?
__
Do you Yahoo!?
Yahoo! Mail - Find what you need with new enhanced search.
http://info.mail.yahoo.com/mail_250
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] RE help
Problem solved. Thanks
--- Kent Johnson <[EMAIL PROTECTED]> wrote:
> Try it with non-greedy matches. You are matching
> everything from the first
> in one match. Also I think you want to escape the .
> before (you want just paragraphs that end
> in a period?)
>
> pattern = re.compile(""" href="/(.*?)">(.*?)\.""", re.DOTALL)
>
> Kent
>
> Ron Nixon wrote:
> > Trying to scrape a newspaper site for articles
> using
> > this code whic ws done with help from the list:
> >
> > import urllib, re
> > pattern = re.compile(""" > href="/(.*)">(.*).""", re.DOTALL)
> > page
> >
> =urllib.urlopen("http://www.startribune.com";).read()
>
> >
> > for headline, body in pattern.findall(page):
> > print body
> >
> > It should grab articles from this:
> >
> > Sid
> Hartman:
> > Franchise could be movedIf Reggie
> Fowler
> > and his business partners from New Jersey are
> approved
> > to buy the Vikings franchise from Red McCombs, it
> is
> > my opinion the franchise remains in danger of
> > eventually being relocated.
> >
> > and give me this: Sid Hartman: Franchise could be
> > movedIf Reggie Fowler and his business
> > partners from New Jersey are approved to buy the
> > Vikings franchise from Red McCombs, it is my
> opinion
> > the franchise remains in danger of eventually
> being
> > relocated.
> >
> > Instead it gives me this:Boxerjam. from
> > this :
> >
>
href="http://www.startribune.com/stories/1559/4773140.html";>Boxerjam.
> >
> >
> > I know the re works in other programs I've tried.
> Is
> > there something different about re's in Python?
> >
> >
> >
> >
> >
> > __
> > Do you Yahoo!?
> > Yahoo! Mail - Find what you need with new enhanced
> search.
> > http://info.mail.yahoo.com/mail_250
> > ___
> > Tutor maillist - Tutor@python.org
> > http://mail.python.org/mailman/listinfo/tutor
> >
>
> ___
> Tutor maillist - Tutor@python.org
> http://mail.python.org/mailman/listinfo/tutor
>
__
Do you Yahoo!?
The all-new My Yahoo! - What will yours do?
http://my.yahoo.com
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] Better Search and replace method
I'm trying to figure out a better solution to do
multiple search and replaces in a text file without
having to type:
import re
s = open('filename')
re.sub('vaule1','value2',s)
re.sub('vaule3','value4',s)
etc
I've tried putting all the vaules in a list and doing
the replace, but came up short. Any suggestions?
Thanks in advance
Ron
__
Celebrate Yahoo!'s 10th Birthday!
Yahoo! Netrospective: 100 Moments of the Web
http://birthday.yahoo.com/netrospective/
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] re help
The following program takes text data like this:
Jimi Hendrix
2100 South Ave
Seattle, WA 55408
and changes it to this
Jimi Hendrix, 2100 South Ave,Seattle,WA,55488
and writes it to a file. The problem I'm running into
is that it only writes this first address to a file
and there are several others in the file. I believe it
has something to do with using re.search instead of
re.findall. But re.findall returns a error when I try
using it. Suggestions? Thanks in advance.
Here is the script:
import re
f = open('reformat.txt').read()
pat = re.compile(r"([^\r\n]+)\n([^\r\n]*)\n([^\r\n]*)
([^\r\n]*) ([^\r\n]*)")
x=re.search(pat,f)
name = x.group(1)
address = x.group(2)
citystate = x.group(3)+x.group(4)
zipcd = x.group(5)
o= open('reformat1.txt','w')
o.write("%s,%s,%s,%s\n" % (name, address,
citystate,zipcd))
o.close()
print("%s,%s,%s,%s\n" % (name, address, citystate,zipcd))
__
Do you Yahoo!?
Yahoo! Small Business - Try our new resources site!
http://smallbusiness.yahoo.com/resources/
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] re.findall vs. re.search and re.match
Thanks to all who replied to my post earlier on re's.
I'm still preplexed by why re.search and re.match
works in the code below, but not re.findall.
re.findall is suppose to return all non-voerlapping
occurances of the pattern that matches in this
example, but it returns errors. Looking through the
docs and from what I can see it should work. Can
anyone provide advice.
import re
f = open('reformat.txt').read()
pat = re.compile(r"([^\r\n]+)\n([^\r\n]*)\n([^\r\n]*)
([^\r\n]*) ([^\r\n]*)")
x=re.search(pat,f)
name = x.group(1)
address = x.group(2)
citystate = x.group(3)+x.group(4)
zipcd = x.group(5)
o= open('reformat1.txt','w')
o.write("%s,%s,%s,%s\n" % (name, address,
citystate,zipcd))
o.close()
print("%s,%s,%s,%s\n" % (name, address, citystate,zipcd))
__
Do you Yahoo!?
Yahoo! Small Business - Try our new resources site!
http://smallbusiness.yahoo.com/resources/
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] re.findall vs. re.search and re.match
Kent:
The code is below. Here's the error message.
Traceback (most recent call last):
File "C:/Python24/reformat.py", line 5, in
-toplevel-
name = x.group(1)
AttributeError: 'list' object has no attribute 'group'
import re
f = open('reformat.txt').read()
pat = re.compile(r"([^\r\n]+)\n([^\r\n]*)\n([^\r\n]*)
([^\r\n]*) ([^\r\n]*)")
x=re.findall(pat,f)
name = x.group(1)
address = x.group(2)
citystate = x.group(3)+x.group(4)
zipcd = x.group(5)
o= open('reformat1.txt','w')
o.write("%s,%s,%s,%s\n" % (name, address,
citystate,zipcd))
o.close()
print("%s,%s,%s,%s\n" % (name, address,
citystate,zipcd))
--- Kent Johnson <[EMAIL PROTECTED]> wrote:
> Ron Nixon wrote:
> > Thanks to all who replied to my post earlier on
> re's.
> > I'm still preplexed by why re.search and re.match
> > works in the code below, but not re.findall.
> > re.findall is suppose to return all
> non-voerlapping
> > occurances of the pattern that matches in this
> > example, but it returns errors. Looking through
> the
> > docs and from what I can see it should work. Can
> > anyone provide advice.
>
> Please show the code that uses re.findall() and the
> error you receive when you run it.
>
> Kent
>
> ___
> Tutor maillist - Tutor@python.org
> http://mail.python.org/mailman/listinfo/tutor
>
__
Do you Yahoo!?
Yahoo! Small Business - Try our new resources site!
http://smallbusiness.yahoo.com/resources/
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] CPAN for python
Is there a site like Perl's CPAN for Python? I've seen the stuff at ActiveState. Anything else? Ron Nixon __ Discover Yahoo! Have fun online with music videos, cool games, IM and more. Check it out! http://discover.yahoo.com/online.html ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] python mechanize examples
Anyone have or know where I can find working examples of python's mechanize modules. Try to reverse engineer a script to see how it works. Ron Yahoo! Autos. Looking for a sweet ride? Get pricing, reviews, & more on new and used cars.___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] urlretrieve
Is there a way to get the urlretrive module to grab multiple files similar to wget? Ron Nixon Expecting? Get great news right away with email Auto-Check. Try the Yahoo! Mail Beta. http://advision.webevents.yahoo.com/mailbeta/newmail_tools.html ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
