Why is my Python code printing only even indices? [duplicate]

Question

You can clearly what I mean from the codes and console output.

file1 = open("texxt.txt", "r")

lines = file1.readlines()

all_names = []

for line in lines:
    all_names.append(line.strip())

print(all_names)

for name in all_names:
    print(all_names.index(name))

Console

> D:\Codes\Flutter\learningdart>python text.py
> ['19th Mile', '19th Mile', '1Password', '1Password', 'ActiveTrail', 'ActiveTrail','AdEspresso', 'AdEspresso']
>0
>0
>2
>2
>4
>4
>6
>6

In case you need the text file

19th Mile
19th Mile
1Password
1Password
ActiveTrail
ActiveTrail
AdEspresso
AdEspresso

Answer 1

If you want all indices using range() and len():

for index in range(len(all_names)):
        print(index)

try this :

file1 = open("texxt.txt", "r")
lines = file1.readlines()
all_names = []
for line in lines:
    all_names.append(line.strip())
print(all_names)
for index in range(len(all_names)):
    print(index)

If you want name and indices both then:

for name in enumerate(all_names):
    print(name)

Answer 2

You ask for index So the position of an element. You need to get the element using :

all_names[name]