python [-1:] code example

Example 1: 5**5

print(5**5)

Example 2: :: in python

#[start:end:step]
>>> range(10)[::2]
[0, 2, 4, 6, 8]

Example 3: python [:-1]

data.append(line[:-1])
#slices the line until last element (\n for example)

Example 4: in python [:-1]

>>> L = range(10)
>>> L[::2]
[0, 2, 4, 6, 8]