In [1]:

    

def search(list, x):
    index = 0
    for item in list:
        if item == x:
            return index
        else:
            index = index + 1
    return print("Item not found")


    

In [7]:

    

search([5,6,3,4], 9)


    

    




Item not found

In [8]:

    

search([5,6,3,4], 2)


    

    




Item not found

In [9]:

    

search([5,6,3,4], 3)


    

    
Out[9]:





2

In [16]:

    

def search(list, x):
    index = 0
    indices = []
    for item in list:
        if item == x:
            indices.append(index)
        index = index + 1
    if indices:
           return indices
    else: 
        return print("Item not found")


    

In [17]:

    

search([5,6,3,4], 9)


    

    




Item not found

In [18]:

    

search([5,6,3,4], 2)


    

    




Item not found

In [19]:

    

search([5,6,3,4,3], 3)


    

    
Out[19]:





[2, 4]

In [ ]: