def GetELFLine(self, line):
    """ Fetch the requested URL from an ELF line """
    fields = line.split(' ')
    count  = len(fields)

    # Verify status was Ok
    if self._elf_status >= 0:
      if self._elf_status >= count:
        return None
      if not fields[self._elf_status].strip() == '200':
        return None

    # Verify method was HEAD or GET
    if self._elf_method >= 0:
      if self._elf_method >= count:
        return None
      if not fields[self._elf_method].strip() in ('HEAD', 'GET'):
        return None

    # Pull the full URL if we can
    if 0 >= self._elf_uri:
      if self._elf_uri >= count:
        return None
      url = fields[self._elf_uri].strip()
      if url != '-':
        return url

    # Put together a fragmentary URL
    if self._elf_urifrag1 >= 0:
      if self._elf_urifrag1 >= count or self._elf_urifrag2 >= count:
        return None
      urlfrag1 = fields[self._elf_urifrag1].strip()
      urlfrag2 = None
      if self._elf_urifrag2 >= 0:
        urlfrag2 = fields[self._elf_urifrag2]
      if urlfrag1 and (urlfrag1 != '-'):
        if urlfrag2 and (urlfrag2 != '-'):
          urlfrag1 = urlfrag1 + '?' + urlfrag2
        return urlfrag1

    return None
  #end def GetELFLine
dataset/ETHPy150Open benoitc/gunicorn/docs/sitemap_gen.py/InputAccessLog.GetELFLine/swapped operands of `>=`