Finding the index of an item in a list

Question

Given a list [\"foo\", \"bar\", \"baz\"] and an item in the list \"bar\", how do I get its index (1) in Python?

Answer 1

index() returns the first index of value!

| index(...)
| L.index(value, [start, [stop]]) -> integer -- return first index of value

def all_indices(value, qlist):
    indices = []
    idx = -1
    while True:
        try:
            idx = qlist.index(value, idx+1)
            indices.append(idx)
        except ValueError:
            break
    return indices

all_indices("foo", ["foo","bar","baz","foo"])