strip() method makes me confused
According to documentation strip method removes heading and trailing
txt = ",,,,,rrttggs...,..s,bananas...s.rrr"
x = txt.strip(",s.grt")
text = "this is text, there should be not commas, but as you see there
y = txt.strip(",")
this is text, there should be not commas, but as you see there are still