lhtown
March 20th, 2006, 04:53 AM
Ok, so I am working my way through the "How to think like a computer scientist" tutorial teaching myself Python as I go. I think it is an excellent tutorial and it makes a lot of sense to me. Python is my first programming language, and so far, I am enjoying learning it and working in it.
Here is my problem. I have written the following code and reviewed it a number of times, but it still returns the following error:
Traceback (most recent call last):
File "delete.py", line 54, in ?
text=ptagstatement()
File "delete.py", line 41, in ptagstatement
while string.find(newtext, ptag, [searchstartposition])!=-1:
File "/usr/lib/python2.4/string.py", line 361, in find
return s.find(*args)
TypeError: slice indices must be integers or None
I am guessing that the answer is quite simple, but there must be something that I am either overlooking or just haven't learned yet.
Here is my code:
import string
text="""<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="content-type" />
<title></title>
</head>
<body>
<h2 id="head-3baadd3f6cf4468e604a717d19bca973c7e37ce4">Linux
for Human Beings</h2>
<p fluff ><strong>"Ubuntu" is an ancient African word, meaning
"humanity to
others". Ubuntu also means "I am what I am because of who we all are".
The Ubuntu Linux distribution brings the spirit of Ubuntu to the
software world.</strong> </p>
<p more fluff >Ubuntu
is a complete Linux-based operating system, freely available with both
community and professional support. It is developed by a large
community and we invite you to participate too!</p>
<p even more fluff >The Ubuntu
community is built on the ideas enshrined in the Ubuntu Philosophy:
that software should be available free of charge, that software tools
should be usable by people in their local language and despite any
disabilities, and that people should have the freedom to customise and
alter their software in whatever way they see fit.</p>
<p yet even more fluff >These freedoms
make Ubuntu fundamentally different from traditional proprietary
software: not only are the tools you need available free of charge, you
have the right to modify your software until it works the way you want
it to.</p>
</body>
</html>"""
print text
def ptagstatement():
ptag="<p"
ptagclose=">"
newtext=text
searchstartposition=1
while string.find(newtext, ptag, [searchstartposition])!=-1:
myptagstatement=string.find(newtext, ptag, [searchstartposition])
ptagclose=string.find(newtext, ptag_close, [myptagstatement])
print myptagstatement
print ptagclose
myptagstatement=myptagstatement+2
print myptagstatement
string1=newtext[:myptagstatement]
string2=newtext[ptagclose:]
searchstartposition=ptagclose+1
newtext=string1+string2
return newtext
text=ptagstatement()
print text
What I actually want the script to do is to strip the fluff out of the beginning <p fluff> tags. I am working on a site that was developed in Frontpage and maybe with some other junk and I want to strip the frivolous code out while leaving the bold, italics and a few other things.
Thanks for looking.
Here is my problem. I have written the following code and reviewed it a number of times, but it still returns the following error:
Traceback (most recent call last):
File "delete.py", line 54, in ?
text=ptagstatement()
File "delete.py", line 41, in ptagstatement
while string.find(newtext, ptag, [searchstartposition])!=-1:
File "/usr/lib/python2.4/string.py", line 361, in find
return s.find(*args)
TypeError: slice indices must be integers or None
I am guessing that the answer is quite simple, but there must be something that I am either overlooking or just haven't learned yet.
Here is my code:
import string
text="""<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="content-type" />
<title></title>
</head>
<body>
<h2 id="head-3baadd3f6cf4468e604a717d19bca973c7e37ce4">Linux
for Human Beings</h2>
<p fluff ><strong>"Ubuntu" is an ancient African word, meaning
"humanity to
others". Ubuntu also means "I am what I am because of who we all are".
The Ubuntu Linux distribution brings the spirit of Ubuntu to the
software world.</strong> </p>
<p more fluff >Ubuntu
is a complete Linux-based operating system, freely available with both
community and professional support. It is developed by a large
community and we invite you to participate too!</p>
<p even more fluff >The Ubuntu
community is built on the ideas enshrined in the Ubuntu Philosophy:
that software should be available free of charge, that software tools
should be usable by people in their local language and despite any
disabilities, and that people should have the freedom to customise and
alter their software in whatever way they see fit.</p>
<p yet even more fluff >These freedoms
make Ubuntu fundamentally different from traditional proprietary
software: not only are the tools you need available free of charge, you
have the right to modify your software until it works the way you want
it to.</p>
</body>
</html>"""
print text
def ptagstatement():
ptag="<p"
ptagclose=">"
newtext=text
searchstartposition=1
while string.find(newtext, ptag, [searchstartposition])!=-1:
myptagstatement=string.find(newtext, ptag, [searchstartposition])
ptagclose=string.find(newtext, ptag_close, [myptagstatement])
print myptagstatement
print ptagclose
myptagstatement=myptagstatement+2
print myptagstatement
string1=newtext[:myptagstatement]
string2=newtext[ptagclose:]
searchstartposition=ptagclose+1
newtext=string1+string2
return newtext
text=ptagstatement()
print text
What I actually want the script to do is to strip the fluff out of the beginning <p fluff> tags. I am working on a site that was developed in Frontpage and maybe with some other junk and I want to strip the frivolous code out while leaving the bold, italics and a few other things.
Thanks for looking.