Counting specific letter in string

Question

How can I count number of a in "aioaeba"

Answer 1

Alternatively, you could use the string method count().

Example:
print("Lisa".count("i"))

Answer 2

In python, you would use a loop to go through your letters and if the letter matches "a", add it to a counter and then print it.
e.g.
counter = 0
loop:
if letter == "a":
counter += 1
print(counter)

Answer 3

Thank you Ausgrindtube and Lisa for help