Binary Search

#Binary Search:

searchQuery=input("SEARCH FOR: ")

list123=["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]


found="false"
bottomNumber=0
topNumber=len(list123)-1




while found=="false" and topNumber!=bottomNumber:

    if found=="true":
        break
    midpoint=((bottomNumber+topNumber)//2)



    if list123[midpoint]==searchQuery:
        found="true"
    elif list123[midpoint]<searchQuery:
        bottomNumber=midpoint+1
    else:
        topNumber=midpoint+1



    midpoint=bottomNumber+topNumber//2




    if found=="true":
        print("Your search query was found in position:",midpoint+1,"!")
        break