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November 12, 2017 09:09
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Also, note the elegant usage of an index to slice string. https://stackoverflow.com/questions/14496006/finding-last-occurrence-of-substring-in-string-replacing-that
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| old_string = "this is going to have a full stop. some written sstuff!" | |
| k = old_string.rfind(".") | |
| new_string = old_string[:k] + ". - " + old_string[k+1:] |
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