python list element index code example
Example 1: python find index by value
>>> ["foo", "bar", "baz"].index("bar")
1
Example 2: python find index of first matching element in a list
list.index(element, start, end)
my_list = [1, 2, 3, 4, 5, 6, 7, 8, 42, 9, 10]
my_list.index(42)
--> 8
Example 3: python index of element in list
alphabets = ['a', 'e', 'i', 'o', 'g', 'l', 'i', 'u']
index = alphabets.index('i')
print('The index of i:', index)
index = alphabets.index('i', 4)
print('The index of i:', index)
index = alphabets.index('i', 3, 5)
print('The index of i:', index)
Example 4: python index of item in list
list.index(element)
Example 5: python index list in list
>>> list1 = [[10,13,17],[3,5,1],[13,11,12]]
>>> list1[0][2]
17