python, for loop and list append

Question

I am trying to extract a part of a string and append it to a list (message). But at the end, what I see is just one item appended (the last one) to the list. Below is my code. What am i doing wrong?

for item in all_text:
    message = []
    if len(item) < 2:
        continue
    else:
        m_temp = item.split(']')[1].split(':')
        if len(m_temp) <= 1:
            continue
        else:
            message.append(m_temp[1])
    print(len(message))
    print(message)

Mahmoud Nasr · Accepted Answer · 2020-05-14 19:35:37Z

1

move the message = [] above the for loop and align the two print with the For

answered May 14, 2020 at 19:35

Mahmoud Nasr

65211 silver badges13 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Daniel Walker · Accepted Answer · 2020-05-14 19:27:42Z

0

You're redefining message to be an empty list with each iteration of your for loop. Therefore, all of your previous appends will be lost except for the one on the last iteration.

Try moving message = [] to right before your for loop.

answered May 14, 2020 at 19:27

Daniel Walker

6,9067 gold badges25 silver badges65 bronze badges

1 Comment

Mahmoud Nasr Over a year ago

move the message = [] above the for loop and align the tow print with the For

Collectives™ on Stack Overflow

python, for loop and list append

2 Answers 2

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related