How to set split() start and end delimiter? - python-3.x

Question

[(0,
'0.011*"people" + 0.009*"christian" + 0.008*"god" + 0.008*"law" + '
'0.006*"believe" + 0.005*"question" + 0.005*"man" + 0.005*"life" + '
'0.005*"time" + 0.005*"write"'),
(1,
'0.014*"organization" + 0.013*"group" + 0.012*"image" + 0.010*"university" + '
'0.009*"program" + 0.008*"newsletter" + 0.007*"graphic" + '
'0.007*"information" + 0.007*"file" + 0.006*"box"'),
(2,
'0.015*"write" + 0.015*"organization" + 0.014*"article" + 0.012*"year" + '
'0.008*"university" + 0.007*"team" + 0.007*"time" + 0.006*"game" + '
'0.006*"give" + 0.006*"kid"'),
(3,
'0.049*"space" + 0.009*"year" + 0.008*"publish" + 0.006*"aerospace" + '
'0.006*"news" + 0.006*"technical" + 0.005*"satellite" + 0.005*"activity" + '
'0.005*"membership" + 0.005*"system"')]
How do I set the delimeter for the text file shown in the image? I want it to split into four separate text files. What and how should I give the start and end delimiter in the if() as can be seen in the code?. The text file has four separate parts 0,1,2,3. I am trying to write all the parts into separate text file.
`with open('topics.txt','r') as fo:
op=''
start=0
cntr = 1
for x in fo.read().split("\n"):
if (x==''):
if (start==1):
with open(str(cntr) + '.txt','w') as opf:
opf.write(op)
opf.close()
op=''
cntr+=1
else:
start=1
else:
if (op==''):
op = x
else:
op = op + '\n' + x
fo.close()`

Answer 1

If what you posted above is literally your text file, then this should give you each tuple separately.
I'm just using the regular expressions library. The pattern is just look for a left paren ( and run of anything that isn't a right paren, and then a right paren. Super simple.
import re
foo = """[(0,\n blahblahblah), (1,\n asdfasdf), (2,\n ghhgghiegiegieh)]"""
pat = r'\([^\)]+\)'
matches = re.findall(pat, foo)
['(0,\n blahblahblah)', '(1,\n asdfasdf)', '(2,\n ghhgghiegiegieh)']
If you want to separate out the numbers you can do that easily by spliting and striping out the extra stuff:
[i[1:-1].split(',\n')[1].strip() for i in matches]
#['blahblahblah', 'asdfasdf', 'ghhgghiegiegieh']
Then you can write them to whatever file you like.