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Weighted Choice in Python
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| def weighted_choice(choices): | |
| total = sum(w for c, w in choices) | |
| r = random.uniform(0, total) | |
| upto = 0 | |
| for c, w in choices: | |
| if upto + w >= r: | |
| return c | |
| upto += w | |
| assert False, "Shouldn't get here" |
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