pyPythonsTriangle

# From the word "pythons", print a triangle like this:

# pythons
#  ython
#   tho
#    h

s1 = "pythons"
s1 += "*"               # add a string terminator to simplify the processing
n = len(s1) >> 1        # compute how many lines we will print (half string length. Efficient bitwise divide-by-two)
for x in range(n):
    print(" " * x + s1[x:-x-1])     # First time round, it prints zero spaces followed by the complete original word
                                    # 2nd time it prints 1 space followed by the word less 1 character off beginning and end
                                    # etc.

# result

# pythons
#  ython
#   tho
#    h