List of index of occurance of words in string but with reverse indexing

[Rinx1er]

Hello
I have a long string i want to search for a small string/character and record all indexes in list but with reverse index
Can anyone help me?

[sourabhkv]

string="hello how are you i am programming in python , i am also using github"
key="h"#can be single or multi
occurance=[]#this is +ve index

for i in range(len(string)-len(key)+1):
    if string[i:i+len(key)]==key:
        occurance.append(i)

#print(occurance)

occurance_rev = [i-len(string) for i in occurance]
print(occurance_rev)

[sourabhkv]

you can also use .rfind with loop

[Rinx1er]

so here u r getting +ve indexes and converting to reverse index

[sourabhkv]

yeah

[trmese]

string="hello how are you i am programming in python , i am also using github"
key="h"#can be single or multi
occurance=[]#this is +ve index

for i in range(len(string)-len(key)+1):
    if string[i:i+len(key)]==key:
        occurance.append(i)

#print(occurance)

occurance_rev = [i-len(string) for i in occurance]
print(occurance_rev)