Linear_search.py

#using while:
pos=-1

def search(list,n):
    i=0
    
    while i<len(list):
        if list[i]==n:
            globals()['pos']=i
            return True
        i=i+1
    return False
    
list=[5,8,4,6,9,2]
n=9

if search(list,n):
    print("Found at ", pos+1)
else:
    print("Not found")