Write file with specific number of columns

I need to write a text document that has a specific number of columns (in this case there are always 16). The way I found to make this happen was: check which is the len of the array (list) where the values I want are and divide by 16, getting the number of rows enough to equate to 16 columns precisely. Surely there is a much more correct way to optimize this process. Another question I take advantage of to ask is (because I really don't know how to do it): how to write in 16 columns and always leave with an indentation equivalent to the largest number of that array (i.e.: 8500 = 4 characters = 4 spaces). Something like this:

Example

Here is my code:

f = open('Questions.txt','r')    my_list = [line.split(',')[0]  for line in f]    ff = open('Questions_new.txt','w')    i=0  x=len(my_list)    rows = int(round(len(my_list)//16))    for i in range(rows):     row = my_list [i::rows]     ff.write(' '.join(str(x) for x in row)+'\n')  

The use of line.split is because I am extracting from a text document (example below) all characters of a text document until a comma is found:

1213,4214 12312

13,1231 123

45,343

and he just keeps the information for me:

1213

13

45

If someone could help I would be thankful.

https://stackoverflow.com/questions/65756044/write-file-with-specific-number-of-columns January 17, 2021 at 08:11AM