How To Delete Line(s)

[ekasII]

I used re.search to search for a patten stored in a FILE, i need to delete an entire LINE which returned a match, this needs to be done in the text FILE itself, so when I open the file in notepad, the matched lines are suppose to be deleted:

for l__line in l__open_n_read.readlines():
    l__match = re.search('[d][o][l][p][h][i][n][e]',l__line)
        if l__match:
            l_delete_line = l__line.strip() # <-- This Doesnt Work (This Is Were I'm Stuck)

All lines with "dolphine" are to be deleted on the FILE.

Thanks in advance!

[bvdet]

This is one way:

fn = your_file
f = open(fn)
output = []
for line in f:
    if not "dolphine" in line:
        output.append(line)
f.close()
f = open(fn, 'w')
f.writelines(output)
f.close()

If your data is important, consider saving the original data in a backup file before opening the original in write mode. Here's another way:

fn = your_file
output = open(fn).readlines()
f = open(fn, 'w')
f.writelines([item for item in output if 'dolphine' not in item])
f.close()

[ekasII]

I have solved this by using conditions and writing to multiple files. Thanks anyway. I'll return to this post once I have improved my python skills.

[scharnisto]

if you still have it, could you please post the code?