docs: def safe_gz_unzip(contents):
      ''' Takes a file's contents passed as a string (contents) and either gz-unzips the contents and returns the uncompressed data or else returns the original contents.
          This function raises an exception if passed what appears to be gz-zipped data (from the magic number) but if gzip fails to decompress the contents.
          A cleaner method would use zlib directly rather than writing a temporary file but zlib.decompress(contents, 16+zlib.MAX_WBITS) fix did not work for me immediately and I had things to get done!'''
      if len(contents) > 1 and ord(contents[0]) == 31 and ord(contents[1]) == 139:
          #contents = zlib.decompress(contents, 16+zlib.MAX_WBITS)
          fname = write_temp_file('/tmp', contents)
          try:
              f = gzip.open(fname, 'rb')
              contents = f.read()
              f.close()
          except:
              os.remove(fname)
              raise
          return contents
      else:
          return contents