changing a list of strings in python

Question

I am trying to change this list

['AAAAA   4 2 1 2 4 2 4 4 5 2 2 1 5 2 4 3 1 1 3 3 5',
 'BBB     5 2 1 2 4 5 4 4 1 2 2 2 4 4 4 3 1 2 3 3 2',
 'K       4 1 2 1 2 1 2 5 1 1 1 1 4 2 2 1 5 1 3 4 1']

to something that looks like this

AAAAA -- [4, 2, 1, 2, 4, 2, 4, 4, 5, 2, 2, 1, 5, 2, 4, 3, 1, 1, 3, 3, 5]
BBB -- [5, 2, 1, 2, 4, 5, 4, 4, 1, 2, 2, 2, 4, 4, 4, 3, 1, 2, 3, 3, 2]
K -- [4, 1, 2, 1, 2, 1, 2, 5, 1, 1, 1, 1, 4, 2, 2, 1, 5, 1, 3, 4, 1]

i have tried multiple ways and cant figure it out

You can use a dictionary for this: w3schools.com/python/python_dictionaries.asp — lbragile
– lbragile, Commented Nov 30, 2019 at 5:23
better use dictionary which will look like data['AAAAA'] = [4, 2, 1,...] — furas
– furas, Commented Nov 30, 2019 at 5:25
Welcome to Stack Overflow! Check out the tour. Are you aware of str.split or re.split? What have you already tried? What worked and what didn't? Stack Overflow is not a code-writing service. See How to Ask for tips. — wjandrea
– wjandrea, Commented Nov 30, 2019 at 5:27
to get AAAAA, BBB, K you can use line[:5].strip() and rest you can split(' ') and convert to integers — furas
– furas, Commented Nov 30, 2019 at 5:27

Sayandip Dutta · Accepted Answer · 2019-11-30 05:48:16Z

3

You just need to split the elements in each string, take the first element and set it as key of the dictionary, and convert the rest of the elements to integers, and store as values:

list_ = ['AAAAA   4 2 1 2 4 2 4 4 5 2 2 1 5 2 4 3 1 1 3 3 5',
 'BBB     5 2 1 2 4 5 4 4 1 2 2 2 4 4 4 3 1 2 3 3 2',
 'K       4 1 2 1 2 1 2 5 1 1 1 1 4 2 2 1 5 1 3 4 1']
dict_ = {}
for string in list_:
    alpha, *numbers = string.split()
    dict_[alpha] = [*map(int,numbers)]

for alpha, numbers in dict_.items():
    print(f"{alpha} -- {numbers}")

Output:

AAAAA -- [4, 2, 1, 2, 4, 2, 4, 4, 5, 2, 2, 1, 5, 2, 4, 3, 1, 1, 3, 3, 5]
BBB -- [5, 2, 1, 2, 4, 5, 4, 4, 1, 2, 2, 2, 4, 4, 4, 3, 1, 2, 3, 3, 2]
K -- [4, 1, 2, 1, 2, 1, 2, 5, 1, 1, 1, 1, 4, 2, 2, 1, 5, 1, 3, 4, 1]

If you want to go fancy:

generator_ = (f"{alpha} -- {[*map(int,numbers)]}" for alpha, *numbers in [l.split() for l in list_])

print(*generator_, sep = '\n')

edited Nov 30, 2019 at 5:48

answered Nov 30, 2019 at 5:30

Sayandip Dutta

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Comments

lbragile · Accepted Answer · 2019-11-30 05:33:54Z

2

If you want to reproduce what you asked in the question:

x = ['AAAAA 4 2 1 2 4 2 4 4 5 2 2 1 5 2 4 3 1 1 3 3 5', 'BBB 5 2 1 2 4 5 4 4 1 2 2 2 4 4 4 3 1 2 3 3 2', 'K 4 1 2 1 2 1 2 5 1 1 1 1 4 2 2 1 5 1 3 4 1']

for elem in x:
  split = elem.split(" ")
  print("{} -- {}".format(split[0],[int(i) for i in split[1:]]))

This:

Loops through the list x
Splits its items into a separate list split
Separates first element from rest with a "--" when printing

Or using a dictionary:

x = ['AAAAA 4 2 1 2 4 2 4 4 5 2 2 1 5 2 4 3 1 1 3 3 5', 'BBB 5 2 1 2 4 5 4 4 1 2 2 2 4 4 4 3 1 2 3 3 2', 'K 4 1 2 1 2 1 2 5 1 1 1 1 4 2 2 1 5 1 3 4 1']

# Create dictionary following above logic
d = dict()
for elem in x:
    split = elem.split(" ")
    d.update({split[0] : [int(i) for i in split[1:]]})

# Loop through its keys and values and print as needed
for k, v in d.items():
    print("{} -- {}".format(k, v))

Output:

K -- [4, 1, 2, 1, 2, 1, 2, 5, 1, 1, 1, 1, 4, 2, 2, 1, 5, 1, 3, 4, 1]
AAAAA -- [4, 2, 1, 2, 4, 2, 4, 4, 5, 2, 2, 1, 5, 2, 4, 3, 1, 1, 3, 3, 5]
BBB -- [5, 2, 1, 2, 4, 5, 4, 4, 1, 2, 2, 2, 4, 4, 4, 3, 1, 2, 3, 3, 2]

edited Nov 30, 2019 at 5:33

answered Nov 30, 2019 at 5:26

lbragile

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1 Comment

furas Over a year ago

if OP expects lists with numbers then you would also need to split 4 2 1 2 and convert to integers.

Jay Reddy · Accepted Answer · 2019-11-30 06:21:30Z

2

inputlist=['AAAAA   4 2 1 2 4 2 4 4 5 2 2 1 5 2 4 3 1 1 3 3 5', 'BBB     5 2 1 2 4 5 4 4 1 2 2 2 4 4 4 3 1 2 3 3 2', 'K       4 1 2 1 2 1 2 5 1 1 1 1 4 2 2 1 5 1 3 4 1']
for item in inputlist:
  item_to_list=item.split(" ")
  temp_list=[int(i) for i in list(filter(None, item_to_list[2:]))]
  print("{0} -- {1}".format(item_to_list[0],str(temp_list)))

Output:

AAAAA -- [4, 2, 1, 2, 4, 2, 4, 4, 5, 2, 2, 1, 5, 2, 4, 3, 1, 1, 3, 3, 5]
BBB -- [5, 2, 1, 2, 4, 5, 4, 4, 1, 2, 2, 2, 4, 4, 4, 3, 1, 2, 3, 3,2]
K -- [4, 1, 2, 1, 2, 1, 2, 5, 1, 1, 1, 1, 4, 2, 2, 1, 5, 1, 3, 4, 1]

answered Nov 30, 2019 at 6:21

Jay Reddy

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Comments

oppressionslayer · Accepted Answer · 2019-11-30 05:52:34Z

1

Try this:

name=["AAAAA 4 2 1 2 4 2 4 4 5 2 2 1 5 2 4 3 1 1 3 3 5",
      "BBB 5 2 1 2 4 5 4 4 1 2 2 2 4 4 4 3 1 2 3 3 2",
      "K 4 1 2 1 2 1 2 5 1 1 1 1 4 2 2 1 5 1 3 4 1"]


for item in name:
   thelist = list(map(int, ','.join(item.split(' ')[1:]).split(',')))    
   print(f"{item.split(' ')[0]} -- {thelist}")

output:

AAAAA -- [4,2,1,2,4,2,4,4,5,2,2,1,5,2,4,3,1,1,3,3,5]
BBB -- [5,2,1,2,4,5,4,4,1,2,2,2,4,4,4,3,1,2,3,3,2]
K -- [4,1,2,1,2,1,2,5,1,1,1,1,4,2,2,1,5,1,3,4,1]

edited Nov 30, 2019 at 5:52

answered Nov 30, 2019 at 5:39

oppressionslayer

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Comments

Khakhar Shyam · Accepted Answer · 2019-11-30 06:01:06Z

1

x = ['AAAAA 4 2 1 2 4 2 4 4 5 2 2 1 5 2 4 3 1 1 3 3 5', 'BBB 5 2 1 2 4 5 4 4 1 2 2 2 4 4 4 3 1 2 3 3 2', 'K 4 1 2 1 2 1 2 5 1 1 1 1 4 2 2 1 5 1 3 4 1']

for i in x:
    i = i.split(' ')
    tmp = {i[0]:[int(items) for items in i[1:]]}
    for i, j in tmp.items():
        print(f"{i} - {j}")

Output:

AAAAA - [4, 2, 1, 2, 4, 2, 4, 4, 5, 2, 2, 1, 5, 2, 4, 3, 1, 1, 3, 3, 5]
BBB - [5, 2, 1, 2, 4, 5, 4, 4, 1, 2, 2, 2, 4, 4, 4, 3, 1, 2, 3, 3, 2]
K - [4, 1, 2, 1, 2, 1, 2, 5, 1, 1, 1, 1, 4, 2, 2, 1, 5, 1, 3, 4, 1]

edited Nov 30, 2019 at 6:01

answered Nov 30, 2019 at 5:32

Khakhar Shyam

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Comments

Derek Eden · Accepted Answer · 2019-11-30 06:28:20Z

1

you can make a dict, and also use that dict to get your specific output if that's what you want:

assuming your list is called full_list

lists = [sub.split() for sub in full_list]
keys = [l[0] for l in lists]
vals = [list(map(int,l[1:])) for l in lists]
d = {k:v for k,v in zip(keys,vals)}

if desired to get that specific output:

for k,v in d.items():
    print(f'{k} -- {v}')

output:

AAAAA -- [4, 2, 1, 2, 4, 2, 4, 4, 5, 2, 2, 1, 5, 2, 4, 3, 1, 1, 3, 3, 5]
BBB -- [5, 2, 1, 2, 4, 5, 4, 4, 1, 2, 2, 2, 4, 4, 4, 3, 1, 2, 3, 3, 2]
K -- [4, 1, 2, 1, 2, 1, 2, 5, 1, 1, 1, 1, 4, 2, 2, 1, 5, 1, 3, 4, 1]

answered Nov 30, 2019 at 6:28

Derek Eden

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