THREE-PER-EM SPACE U+2004

BlockGeneral Punctuation
CategorySpace Separator
DecompositionSPACE (U+0020)
UTF-80xE2 0x80 0x84
UTF-160xFF 0xFE 0x4 0x20
UTF-320xFF 0xFE 0x0 0x0 0x4 0x20 0x0 0x0
HTML 
Pythonu"\u2004"