Newb question about %02d %04d

[snippsat]

As mention it gives more flexibility to have a function with parameters,than a limited print statement.
So what did we do print character at one line with between space in python 2?

# Python 2
>>> s = 'hello'
>>> for c in s:
...     print c
...     
h
e
l
l
o
>>> for c in s:
...     print c,   
...     
h e l l o

Ohhh adding , magically print it at one line with space,that's short and readable

If look at help on print() function Python 3,we see that there more choices.

>>> help(print)
Help on built-in function print in module builtins:

print(...)
    print(value, ..., sep=' ', end='\n', file=sys.stdout, flush=False)
    
    Prints the values to a stream, or to sys.stdout by default.
    Optional keyword arguments:
    file:  a file-like object (stream); defaults to the current sys.stdout.
    sep:   string inserted between values, default a space.
    end:   string appended after the last value, default a newline.
    flush: whether to forcibly flush the stream.

So Python 3 more flexibility and readable than magically ,.

# Python 3
>>> s = 'hello'
>>> for c in s:
...     print(c, end=' ')
... 
h e l l o 
>>> for c in s:
...     print(c, end='\t')
... 
h	e	l	l	o	
>>> for c in s:
...     print(c, end='**')
... 
h**e**l**l**o**