def fixpairs(args):
"""
%prog fixpairs pairsfile sep sd
Fix pairs library stats. This is sometime useful to modify library stats,
for example, the separation between paired reads after importing the data.
"""
p = OptionParser(fixpairs.__doc__)
opts, args = p.parse_args(args)
if len(args) != 3:
sys.exit(not p.print_help())
pairsfile, sep, sd = args
newpairsfile = pairsfile.rsplit(".", 1)[0] + ".new.pairs"
sep = int(sep)
sd = int(sd)
p = PairsFile(pairsfile)
p.fixLibraryStats(sep, sd)
p.write(newpairsfile)
