1 2
for i in xrange(1,11): print '{0:2d} {1:3d} {2:4d}'.format(i, i*i, i*i*i)
1 2 3 4
Traceback (most recent call last): Line 2, in <module> print '{0:2d} {1:3d} {2:4d}'.format(i, i*i, i*i*i) AttributeError: 'str' object has no attribute 'format'