How can we create a list and use it dynamically in python

Question

I want to create a list in python which will be having a variable and its location say a list of 10 values location from 0 to 9 eg at location 0 'Abc', 1 'Cde', 2 'Fgh',.... and so on now I want to use the list values in loop incremented by one

list=['Abc','def','ghi'] # Or this may be an excel file with index and one column having different values

i=0 #has list value 'Abc'
while i<=3:
    a=i
    print('List value at'+i+' equals to',List[i])
i=i+1

Input data frame

select List value at index 0 and assign it to an object and then increment index till all the list values.

Output Required

'List value at 0 equals to Abc'
'List value at 1 equals to def'
'List value at 2 equals to ghi'
'List value at 3 equals to jkl'
'List value at 4 equals to mno'

You have some errors in your code: 1. while i<=3 will result in an exception because your list has only three elements (remember: python lists are zero based) 2. You have list and List 3. Why this a=i ? 4. You have the indentation wrong at i=i+1 — Ocaso Protal
– Ocaso Protal, Commented Apr 17, 2020 at 12:34

Cblopez · Accepted Answer · 2020-04-17 11:31:45Z

1

I really didn't get your question, but hope this helps:

Add element to list

l.append(element)

Get element by position

l[0] # Access element from position 0

Loop through list elements

for i in l:
    print('Item: {}'.format(i))

Loop through list by positions

for i in range(len(l)):
    print('Item: {}'.format(l[i]))

And please, do not name your lists list, it shadows the Python list() function.

answered Apr 17, 2020 at 11:31

Cblopez

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Ocaso Protal Over a year ago

You could maybe add slicing to your answer, since there is a while i<=3: in the question.

Anamta sayyed · Accepted Answer · 2020-04-17 14:21:05Z

0

input: List.xlsx

Process:

k=pd.read_excel('List.xlsx')
m1_list = k.values.tolist()
list = m1_list

i=0
while i < len(list):
    obj= list1[i]
    print(obj)

    i=i+1

output:

'Abc'
'def'
'ghi'
'jkl'

answered Apr 17, 2020 at 14:21

Anamta sayyed

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How can we create a list and use it dynamically in python

2 Answers 2

Add element to list

Get element by position

Loop through list elements

Loop through list by positions

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Collectives™ on Stack Overflow

2 Answers 2

Add element to list

Get element by position

Loop through list elements

Loop through list by positions

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