need help removing text from one file and then outputing it to another file

[eric dexter]

I need to take text from one file and then save it to a different file. I also need to return any comment

The def should have variables for the file that should be read in, the file it should be read out to and the instrument number to take. thanks in advance (re has been driving me nuts I can paste what I have if it helps.) The text I am trying to remove will look something like this

instr 1 ;String pad
there will be a bunch of commands here
it will end with endin

I also need to write something that will take all the instr numbers and return them along with the comment string that starts with ; (if there is one)

https://sourceforge.net/projects/dex-tracker

[bartonc]

This reads a file in the director of the script and writes to the same directory.

def get_instr(from_file, to_file="test_out", instr_num=1):
    instr_num_str = str(instr_num)
    out_list = []
    infile = open(from_file, 'r')
    for line in infile: # Internally, for calls the files next() method
        line_list = line.split()
        if len(line_list) > 1 and line_list[1] == instr_num_str:
            out_list.append(line)
            while True:
                cmd = infile.next(), # so by the time we get here, we're ready
                cmd_str = cmd[0]
                print repr(cmd_str)
                out_list.append(cmd_str)
                if cmd_str.rstrip() == "endin":
                    break
            break
    infile.close()
    print out_list
    outfile = open(to_file, "w")
    outfile.writelines(out_list)
    outfile.close()
 
get_instr("instr_test", instr_num=2)
 

this is the file I used:

instr 1
an assorted
bunch of
commands
endin
instr 2
another
bunch of
commands
endin

Have fun!

[eric dexter]

Thanks I will give that a try (probily sometime tommorow morning)