EM QUAD U+2001

BlockGeneral Punctuation
CategorySpace Separator
DecompositionEM SPACE (U+2003)
UTF-80xE2 0x80 0x81
UTF-160xFF 0xFE 0x1 0x20
UTF-320xFF 0xFE 0x0 0x0 0x1 0x20 0x0 0x0
HTML 
Pythonu"\u2001"