Created
May 10, 2016 18:19
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| Python 3.5.1 (default, Dec 2015, 13:05:11) | |
| [GCC 4.8.2] on linux | |
| a=set() | |
| => None | |
| a.add(8) | |
| => None | |
| b=set([4]) | |
| => None | |
| a | |
| => {8} | |
| b | |
| => {4} | |
| b.add(9) | |
| => None | |
| b.add(94) | |
| => None | |
| b | |
| => {9, 4, 94} | |
| a | |
| => {8} | |
| a.update(b) | |
| => None | |
| a | |
| => {8, 9, 4, 94} | |
| b | |
| => {9, 4, 94} | |
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