Alternative solution to topic: http://www.python-forum.de/viewtopic.php?f=1&t=29353

linklint_parser.py

#!/usr/bin/env python

from itertools import groupby


TEXT = """
/path/to/bla/bla1
     used in 3 files:
     /path/to/other/file1
     /path/to/other/file2
     /path/to/other/file3

/path/to/bla/bla2
     used in 2 files:
     /path/to/other/file4
     /path/to/other/file5
"""


def strip_needless_lines(lines, skip="used in"):
    for line in lines:
        if line.lstrip().startswith(skip):
            continue
        elif line.strip():
            yield line 


def mark_sections(lines, key_token="/"):
    for line in lines:
        if line.startswith(key_token):
            key = line
        else:
            yield key, line.lstrip()
    

def parse(lines):
    links = dict()
    for key, group in groupby(mark_sections(strip_needless_lines(lines)), 
                              key=lambda t: t[0]):
        links[key] = [value for _, value in group]
    return links
    

def main():
    links = parse(iter(TEXT.split("\n")))
    print(links)


if __name__ == "__main__":
    main()