In [4]:

    

def find_number(chosen_number, numbers_list):
    for number in numbers_list:
        if number == chosen_number:
            # replace "Found number" by code that gives the index
            return "Found number"
        else:
            continue


    

In [5]:

    

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


    

    
Out[5]:





'Found number'

In [6]:

    

find_number(7, [2,3,4,5,6])


    

In [ ]: