code: def _get_unique_ch(text, all_common_encodes):
      
  
      unique_chars = ''
      if isinstance(text, str):
          text = text.split("\n")
      elif isinstance(text, (list, tuple)):
          pass
  
      special_chars = ['.', ',', ';', ':','', ' ', '\r', '\t', '=', '\n']
      for line in text:
          for word in line.split(' '):
              if ( not PYTHON3 ): word = word.decode( 'utf-8')
              for ch in all_common_encodes:
                  if ch in word: word = word.replace(ch, '')
              # end of for ch in _all_common_encodes_:
              # if len of word is zero, then go for another word
              if not word: continue
  
              for ch in word:
                  if ch.isdigit() or ch in special_chars:
                      # remove special common chars
                      word = word.replace(ch, '')
                      continue
                  # end of if ch.isdigit() or ...:
                  # Whola, got unique chars from user passed text
                  return word
              # end of for ch in word:
          # end of for word in line.split(' '):
      # end of for line in text:
      return ''
docs: text : encode sample strings
  
          returns unique word / characters from input text encode strings.