How to create a range of numbers with a given increment

Question

I want to know whether there is an equivalent statement in lists to do the following. In MATLAB I would do the following

fid = fopen(\'inc.txt\',\'w\')
init          


        

Answer 1

You can easily create a function for this. The first three arguments of the function will be the range parameters as integers and the last, fourth argument will be the filename, as a string:

def range_to_file(init, final, inc, fname):
    with open(fname, 'w') as f:
        f.write('\n'.join(str(i) for i in range(init, final, inc)))

Now you have to call it, with your custom values:

range_to_file(1, 51, 5, 'inc.txt')

So your output will be (in the fname file):

1
6
11
16
21
26
31
36
41
46

NOTE: in Python 2.x a range() returns a list, in Python 3.x a range() returns an immutable sequence iterator, and if you want to get a list you have to write list(range())