Python for loop repeats output when appending to empty list

Question

I'm using Python to create a list from text extracted from zoom, this is the text...

text= """
09:04:57 РћС‚  John Aiton  РєРѕРјСѓ  Р’СЃРµ : Tomorrow I'm going on a trip GRA
09:05:05 РћС‚  John Aiton  РєРѕРјСѓ  Р’СЃРµ : now I am on a trip GRA
09:08:03 РћС‚  John Aiton  РєРѕРјСѓ  Р’СЃРµ : soon we go down south GRA
"""

When I tried to append to an empty list with this code

my = []
for line in text.splitlines():
    my.append(line[46:])
    print(my)

I got repeated results in the output, the beginning of which is below:

["Tomorrow I'm going on a trip GRA"]
["Tomorrow I'm going on a trip GRA", 'now I am on a trip GRA']
["Tomorrow I'm going on a trip GRA", 'now I am on a trip GRA', 'soon we go down south GRA']
["Tomorrow I'm going on a trip GRA", 'now I am on a trip GRA', 'soon we go down south GRA', 'meet up with a friend LRG']
["Tomorrow I'm going on a trip GRA", 'now I am on a trip GRA', 'soon we go down south GRA', 'meet up with a friend LRG', "it reminds me of a book I'm listening to now LRG"]

How can I avoid this repetition and end up with an output (in list or string form) like this:

Tomorrow I'm going on a trip GRA
now I am on a trip GRA
soon we go down south GRA

you are doing everything right, just print list at the end not inside for loop — Rustam Garayev
– Rustam Garayev, Commented Jul 3, 2021 at 7:47

Austin · Accepted Answer · 2021-07-03 07:45:18Z

1

You can use * unpacking with sep='\n' argument for print:

my = []
for line in text.splitlines():
    my.append(line[46:])
print(*my, sep='\n')

Output:

Tomorrow I'm going on a trip GRA
now I am on a trip GRA
soon we go down south GRA

answered Jul 3, 2021 at 7:45

Austin

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David · Accepted Answer · 2021-07-03 07:48:29Z

0

Another solution wihtout using the specific index (which can cause some issue) is:

[l.split(' : ')[-1] for l in text.splitlines() if l]

So splitlines() will separate by \n and then for each entry to the list if it's not empty we will split by : and take the last element.

This will result in:

["Tomorrow I'm going on a trip GRA",
 'now I am on a trip GRA',
 'soon we go down south GRA']

answered Jul 3, 2021 at 7:48

David

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Comments

azro · Accepted Answer · 2021-07-03 07:54:59Z

0

There is 2 main ways:

print each row during iterating

my = []
for line in text.splitlines():
    my.append(line[46:])
    print(my[-1])

print each after iterating

for x in my:
    print(x)

// or 
print(*my, sep='\n')

answered Jul 3, 2021 at 7:54

azro

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