2 ways to rotate a string by n characters in #Python: slicing and collections.deque
>>> s = 'hello' >>> s[2:] + s[:2] 'llohe' >>> from collections import deque >>> d = deque(s) >>> d.rotate(-2) >>> d deque(['l', 'l', 'o', 'h', 'e'])
Python 3 supports Unicode so we can do cool stuff like ... emojis 😅
Let's play a bit with emoji-to-text and vice versa. Complete the two functions below to get the meaning of an emoji, and secondly build a lookup of emojis by string.
No external modules required, you will leverage (once more) the standard library: use the
unicodedatamodule. And this is what you will build 😎$ python emoji.py smiling Grinning Face With Smiling Eyes | 😁 Smiling Face With Open Mouth | 😃 Smiling Face With Open Mouth And Smiling Eyes | 😄 Smiling Face With Open Mouth And Cold Sweat | 😅 Smiling Face With Open Mouth And Tightly-Closed Eyes | 😆 ...
