I use python 3.4 and I can format strings in two ways:
print("%d %d" %(1, 2))
and
print("{:d} {:d}".format(1, 2))
In documentation they show examples only using 'format'. Do it mean that using '%' is not good, or it does not matter which version to use?
Quoting from the official documentation,
This method of string formatting is the new standard in Python 3, and should be preferred to the % formatting described in String Formatting Operations in new code.
So, format is the recommended way to do, going forward.
In addition to the recommendations on the official site the format() method is more flexible, powerful and readable than operator '%'.
For example:
>>> '{2}, {1}, {0}'.format(*'abc')
'c, b, a'
>>> coord = {'latitude': '37.24N', 'longitude': '-115.81W'}
>>> 'Coordinates: {latitude}, {longitude}'.format(**coord)
'Coordinates: 37.24N, -115.81W'
>>> "Units destroyed: {players[0]}".format(players = [1, 2, 3])
'Units destroyed: 1'
and more, and more, and more... Hard to do something similar with the operator '%'.
