Write the function
find_occurences(text, letters) that, given a text and a list of letters, will find all occurences of the given letters, regardless of their case, in the text. The function should return the list of tuples of the form
(index, letter), where
index is the index of the letter in the text and
letter is the letter from
For example the function
find_occurences('To be or not to be', ['e', 't']) should return the list
[(0, 'T'), (4, 'e'), (11, 't'), (13, 't'), (17, 'e')].
To check if a given character is present in
letters, you can use:
if character.lower() in letters:
When adding character to a list, don't lower the character:
Also, it's a good idea to use an
enumerate() function in your solution.