Reading blank blank blank blank blank files

Question

How do I avoid reading a blank line in a file, to any operating system, using the Python language?

Answer 1

You can use rstrip() for that reason:

with open(filename) as f:
    #Todas as linhas, incluíndo as em branco
    lines = (line.rstrip() for line in f)
    #linhas sem espaço em branco
    lines = (line for line in lines if line)

You can save everything to a list, through the list comphresion:

with open(filename) as f:
    names_list = [line.strip() for line in f if line.strip()]

Note that in one example I used strip and another rstrip. The function strip or rstrip return the value of the string without whitespace. O if check whether the resulting value of the strip or rstrip is empty. If it is not, the line is added to the list, and if not, it is ignored.

NOTE: rstrip removes blank spaces on the right. strip removes both left and right.

Original answer in SOEN;

Answer 2

You can use the function str.splitlines():

with open("arquivo.txt", "r") as f:
   linhas = f.read().splitlines()

   for linha in linhas:
       print (linha)

Answer 3

arquivo = open("arquivo.txt", "r")
for linhas in arquivo:
    linhas = arquivo.read().splitlines()