Determine existence of a substring in a string

[loren41]

How can I determine the existence of a substring in a string using Python? The string is an html coded text string.

[bvdet]

Test for membership.

>>> 'sub' in 'Test for membership of a substring'
True
>>> 'nub' in 'Test for membership of a substring'
False
>>>

[loren41]

I tried searching for the existence of the string, "Attorney of Record" in a large text string called, tarr_record. How can I test for True or False?

mystring = True

# Search the retrieved html_string for "Attorney of Record"
mystring = tarr_record
"Attorney of Record" in mystring 
if mystring:
    print "URL number ",url_record_number," has an attorney."
else:
    print "URL number ",url_record_number," has NO attorney."

[bvdet]

>>> mystring = "abcdefg   Attorney of Record hijklmnop"
>>> "Attorney of Record".lower() in mystring.lower()
True
>>> if "Attorney of Record".lower() in mystring.lower():
... 	print "It's there"
... 	
It's there
>>>

[loren41]

String Search

Still having trouble verifying the presence of a substring. My string is called tarr_record and contains a complete web page in page source format. In all the search examples I've seen, the contents of the string are placed in quotes. My search is being performed on tarr_record, not a literal contained within quotes. How do I address this problem? Thanks for your continuing help.
[CODE=python]
# Program to read HTML file containing list of TARR files
#
import urllib
import urllib2
import linecache
#
#
#Open a file that contains a list of 100 url addreses
open(url_addres s_list, 'ru')
#
#Read a url address
string = urllib.urlopen( url_address_lis t)
# Read from the object, storing the page's contents in tarr_record.
tarr_record = string.read()
# tarr_record contains the source code for a web page
string.close()
# Test the source code for the text string "Attorney of Record"
substring = tarr_record
"Attorney of Record" in tarr_record
if substring:
print "URL number ",url_record_nu mber," has an attorney."
else:
print "URL number ",url_record_nu mber," has NO attorney."[/CODE]

[bvdet]

Please use code tags when posting code. See reply guidelines here.

Try this:

# Test the source code for the text string "Attorney of Record"
if "Attorney of Record" in tarr_record:
    print "URL number ",url_record_number," has an attorney."
else:
    print "URL number ",url_record_number," has NO attorney."

[loren41]

OS is Ubuntu Linux 9.10/Python Version is 2.6.4/Gui Tool is Dr. Python

[loren41]

Thanks bvdet. As usual, I made the test much harder than it was. Ignorance is frustrating!

Loren