python - Creating lists from a non-csv .txt file; output to new .txt based on variable conditions -

i have 2 quick python questions. first experience python; have no programming experience whatsoever apologize - basic question , know should easy. did search existing answers not find helped.

basically, have .txt file keeps 31 variables. there header @ top category names, , following lines entries. looks this:

date time parameter3 ... parameter31  d1   t1   p3_1      ... p31_1  d2   t2   p3_2      ... p31_2  

etc.

all of parameters numerical, except parameter6, either string of 3 letters or if empty "..."

the .txt file not comma-separated; 1 3 whitespaces separate each value.

i trying import text file python, create list out of each line, , have python check parameter7 , parameter9. if parameters 7 <30 , parameter 9 <35, want python take entry , output new .txt file. if either of these conditions not hold, want ignore particular line , move on. how should go writing such program?

this thing found similar problem: how convert text file list in python

however, above assumes .txt file comma-separated.

thank help!

using line.split() in order fields should work you.

for example:

def line_should_be_stored(fields):     return int(fields[6]) < 30 , int(fields[8]) < 35  f_out = open('test.txt', 'wt')  open('test.txt', 'rt') f_in:     line in f_in:         fields = line.split();         if line_should_be_stored(fields):             f_out.write(line) f_out.close()