in readability/readability.py [0:0]
def clean(text):
# Many spaces make the following regexes run forever
text = re.sub(r"\s{255,}", " " * 255, text)
text = re.sub(r"\s*\n\s*", "\n", text)
text = re.sub(r"\t|[ \t]{2,}", " ", text)
return text.strip()