No output when i add a specific line, why ? - Python

Question

Hello everyone,

was writing a code that prints words from a file, I was wondering when I remove the word = file.read(), my code works just fine, but when I leave it there, the code does basically nothing or at least prints nothing
can anyone explain why?

Thanks in advance.

def test():
file = open("words.txt","r")
#word = file.read()
for line in file :
words = line.strip()
if "z" == words[0] :
print(words)

Answer 1

You can't read a file twice. If you read a file with 'word = file.read()', then if you try to read it again it will return an empty list.

If you keep 'word = file.read()', then intead of 'for line in file:' you should use 'for line in word:'

You can test this using this code:

gt;
f = open('words.txt')
print('first read:\n', f.read())
print('second read:\n', f.read())
<$

You'll notice the 'second read' shows nothing next to it.

Answer 2

Aymane Boukrouh Okey ! thanks a lot Aymane, it make sense ! Thanks again

Answer 3

Aymane Boukrouh i tried what you suggested in using in line for word instead of for line in file, but didn't work !

i guesd it's not supposed to work at all reading it twice