The slice() method specifies how to slice a sequence. Through this function, you can specify where to start the slicing, and where to end.
Example
#!/usr/bin/python3
# -*- coding: UTF-8 -*-
temp = ("1", "2", "3", "A", "B", "C", "D", "E")
x = slice(0, 8, 3)
print(temp[x])
Syntax
slice(start, end, step)
Parameters
| Name |
Description |
| start |
An integer number specifying where to start the slicing. |
| end |
An integer number specifying where to end the slicing |
| step |
An integer number specifying the step of the slicing. |
Return Value
It returns a slice object.
- Slice() function creates a slice object.
- A slice object is used to specify how to slice a sequence by range(start, end, step).
- Python supports the following data types for slice operations: list, tuple, string, unicode, and range.
- The type returned by slice operation is the same as original data type.
- Slice operation does not change original data but regenerates a new data.
2. Parameters
- start: indicates starting index.
- end: indicates end index.
- step: indicates step size. The step size cannot be 0, and the default value is 1.
Source Code
#! /usr/bin/env python3
# -*- coding: utf-8 -*-
alist = ['A','B','C','D','E','F']
print(alist[1:2:6])
print(alist[:])
print(alist[0:5])
print(alist[:5])
print(alist[::1])
# Create 3 slice objects
object = slice(1,2,6)
print(alist[object])
object = slice(0,6,1)
print(alist[object])
object = slice(6)
print(alist[object])
Output:
['B']
['A', 'B', 'C', 'D', 'E', 'F']
['A', 'B', 'C', 'D', 'E']
['A', 'B', 'C', 'D', 'E']
['A', 'B', 'C', 'D', 'E', 'F']
['B']
['B', 'C', 'D', 'E', 'F']
['A', 'B', 'C', 'D', 'E', 'F']
