python how to dynamically print index number of items and print the items

This is my code so far:

things = ['humans', 'fish', 'plants', 'planets', 'stars']

print('These are types of things we learnt so far:')
for thing in things:
    print(thing, end=', ')
print()

print(len(things))
the_input = int(input('Now please enter a number which you want to print: '))
print(f'You have chosen {the_input} which is {things[the_input]}.')

# the unfinished rest:
# the_input = int(input('Now please enter a number which you want to print: '))
# if the_input == the index number of indexes of things list,
# then print:
# You have chosen {the_input} which is {things[the_input]}

This is my expected output:

These are types of things we learnt so far:
1) humans, 2) fish, 3) plants, 4) planets, 5) stars

Now please enter a number which you want to print:
2 # this is the input of terminal, not the output of print(the_input)
You have chosen 2 which is fish.

For this code I don’t know how to do this (there maybe other issues but I’m not yet aware of them):

1. The first print statement to show index_number) each_list_item
2. to omit the last , which is shown in my code if you run it

>Solution :

Use enumerate and decrease index input:

things = ['humans', 'fish', 'plants', 'planets', 'stars']

print(*[f'{idx}) {thing}' for idx, thing in enumerate(things, 1)], sep=', ', end='\n\n')

the_input = int(input('Now please enter a number which you want to print:\n'))
print(f'You have chosen {the_input} which is {things[the_input-1]}.')

# 1) humans, 2) fish, 3) plants, 4) planets, 5) stars

# Now please enter a number which you want to print:
# 2
# You have chosen 2 which is fish.