Is there any difference between print 3 and print '3' in Python ?

[iMath]

在 2012年3月26日星期一UTC+8下午7时45分26秒，iMath写道：
> I know the print statement produces the same result when both of these two instructions are executed ,I just want to know Is there any difference between print 3 and print '3' in Python ?

thx everyone