I've got a small script that is extracting some text from a .html file.
f = open(local_file,"r")
for line in f:
searchphrase = '<span class="position'
if searchphrase in line:
print("found it\n")
That works fine for me(error handling will be imported later), my problem is that the text I want to extract follows 2 lines after the searchphrase. How can I move 2 lines down in the .html file ?
You can advance f (which is an iterable) by two lines by calling next() on it twice:
with open(local_file,"r") as f
for line in f:
searchphrase = '<span class="position'
if searchphrase in line:
print("found it\n")
next(f) # skip 1 line
return next(f) # and return the line after that.
However, if you are trying to parse HTML, consider using a HTML parser instead. Use BeautifulSoup, for example.
This works nice for me:
f = open(local_file,"r")
found = -1
for line in f:
if found == 2:
print("Line: "+line);
break
elif found > 0:
found += 1
else:
searchphrase = '<span class="position'
if searchphrase in line:
print("found it")
found = 1
The input file was:
bla
<span class="position">Hello</span>
blub
that's it
whatever
And the output of the program:
found it
Line: that's it
Instead of calling break you may also reset found to -1 to search for more occurences of the pattern...