Create BlackExcellencebsearch.py

def bsearch(myList, value):
    low = 0; high = len(myList) - 1
    while 1:
        if high < low:
            return -1
        mid = (low + high) / 2
        if myList[mid] < value:
            low = mid + 1
        elif myList[mid] > value:
            high = mid - 1
        else:
            return mid

myList= [3,18,45,76,25,10]
myList.sort()