(line)
return line
Return true if the line does only consist of whitespace characters.
Return true if the line does only consist of whitespace characters.
Return true if the line does only consist of whitespace characters .
def onlywhite(line):
    """Return true if the line does only consist of whitespace characters."""
    for c in line:
        if c != ' ' and c != '  ':
            return c == ' '
    return line
def onlywhite ( line ) : for c in line : if c != ' ' and c != '  ' : return c == ' ' return line