Question

I've been using this older c-style substitution in Python:

"Hello, %s!" % name

Apparently there is a newer way of substituting variables. Can someone fill me in on this? Thanks.

Answer 1

The other way to format that I know of is to create a dictionary, i.e.:
print 'This %(name)s is wrong by %(#)d' % {'name' : 'sentence', '#': 4}. I do think that Python 3.x has another way to format, but I don't really remember it. I will look into it :-)

Answer 2

Ah, found it. According to the BDFL's Introduction to Python, one should use str.format because of deprecation. Check this example: http://codepad.org/GSOQwMB8

Answer 3

Great! Thanks, bmp.