print table in console

gistfile1.py

def printTable( data, header=None ):
    lens = [0]*len(data[0])
    for row in data:
        for numCol, column in enumerate(row):
            cLen = len(str(column))
            if lens[numCol] < cLen:
                lens[numCol] = cLen
    res = ""
    spacer = lambda lenList: '+' + '+'.join( '-'*(x+2) for x in lenList ) + '+'
    drawRow = lambda lenList, valueList: '|' + "".join(
            ' %s ' % item + ' ' * (lenList[num] - len(str(item))) + '|'
            for num, item in enumerate(valueList) )
    if header:
        for numCol, column in enumerate(header):
            cLen = len(str(column))
            if lens[numCol] < cLen:
                lens[numCol] = cLen
        res += spacer(lens)+ "\n"
        res += drawRow( lens, header )+ "\n"

    res+= spacer(lens) + "\n"
    for r in data:
        res += drawRow( lens, r )+ "\n"
    res+= spacer(lens)+ "\n"
    return res

header: printTable([[1,2,3],[4,5,6]], ['col 1', 'col 2', 'col 3'])

+-------+-------+-------+
| col 1 | col 2 | col 3 |
+-------+-------+-------+
| 1 | 2 | 3 |
| 4 | 5 | 6 |
+-------+-------+-------+