CODEWITHSUNDEEP
pythontext
Trying_hard
Trying_hard

Reputation: 9501

Python Text file searching

I have a LARGE text file that I am needing to pull several values from. the text file has alot of info I don't need. Is there a way I can serach for a specific term that is in a line and return the first value in that line. Please example below

text
text text
text
text text text
text text

aaaaa     text      sum

text
text
text

I need to search for sum and return the value of aaaaa

Is there a way that I can do this?

Upvotes: 0

Views: 360

Answers (3)

Ben Russell
Ben Russell

Reputation: 1423

Are you looking for something like this?

for Line in file("Text.txt", "r"):
  if Line.find("sum") >= 0:
    print Line.split()[0]

Line.split() will split the line up into words, and then you can select with an index which starts from 0, i.e. to select the 2nd word use Line.split()[1]

Upvotes: 0

Kien Truong
Kien Truong

Reputation: 11381

with open(file_path) as infile:
    for line in infile:
        if 'sum' in line:
            print line.split()[0] # Assuming space separated

Upvotes: 5

Nitzan Tomer
Nitzan Tomer

Reputation: 164357

If the text file is indeed big, you can use mmap — Memory-mapped file support as found in here: Python Random Access File.

Upvotes: 2

Related Questions