Function try_unlink

tools/install.py:25–29

(path)

  return c.startswith(p) and c != p

def try_unlink(path):
  try:
    os.unlink(path)
  except OSError as e:
    if e.errno != errno.ENOENT: raise

def try_symlink(options, source_path, link_path):
  if not options.silent: