I'm looking for suggestions on technique (not necessarily code) about the most pythonic way to normalize vertical whitespace in blocks of text so that there is never more than 1 blank line between paragraphs. Our source text has newlines normalized to single newlines (\n vs. combinations of \r and \n), but there may be leading and trailing whitespace around each newline. Approaches: 1. split text to list of lines that get stripped then: a. walk this list building a new list of lines that track and ignore extra blank lines -OR- b. re-join lines and replace '\n\n\n' wth' \n\n' until no more '\n\n\n' matches exist 2. use regular expressions to match and replace whitespace pattern of 3 or more adjacent \n's with surrounding whitespace 3. a 3rd party text processing library designed for efficiently cleaning up text Thanks!
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