@nbk: That's nonsense. String concatenation of SQL is horribly unsecure and dangerous, and new programmers should learn the proper way to write code from the beginning, and teaching them otherwise is totally working against the goals of this site. Turn your comment into an actual answer and see how many dozens of downvotes you can collect very quickly. — Ken White 49 secs ago

Welcome to Stack Overflow! How to ask homework question and Open letter to students with homework problems — Barmar 24 secs ago

Read this: stackoverflow.com/a/9508558/1412059 Then, consider that Excel also uses floating-point numbers and that Microsoft's programmers often have made peculiar choices how they handle such issues. readxl has to bridge the R world and the Excel world. Maybe you would like to round the values after import? stackoverflow.com/a/63128131/1412059 — Roland 35 secs ago

Welcome to Stack Overflow! Please read How to ask and How do I ask and answer homework questions. In particular, Explain how you encountered the problem you're trying to solve, and any difficulties that have prevented you from solving it yourself. At the moment this reads like you are just asking for software recommendations, which is off-topic, so I have voted to close for now. — SamR 17 secs ago

Welcome to Stack Overflow. Asking for software recommendations is technically off-topic. However, are you talking about swirl? — SamR 59 secs ago

Questions that ask "where do I start?" are typically too broad and are not a good fit for this site. People have their own method for approaching the problem and because of this there cannot be a correct answer. Give a good read over Where to Start and edit your post. — gre_gor just now

you may have the most common problem: page may use JavaScript to add/update elements but BeautifulSoup/lxml, requests/urllib can't run JS. You may need Selenium to control real web browser which can run JS. OR use (manually) DevTools in Firefox/Chrome (tab Network) to see if JavaScript reads data from some URL. And try to use this URL with requests. JS usually gets JSON which can be easy converted to Python dictionary (without BS). You can also check if page has (free) API for programmers. — furas 22 secs ago

@PeterCordes ... But this is obvious: some limits are even in base10 representation, but since there will be coherence will be easier to deal with because people are more used and familiar to. What is important is that it will be possible to use it with no workaround anymore as easy as a+b=c or a*b=c and so on, as normally we would do on paper without having to do convertToSomethingElse(n) before calculations to make possible the calculation itself. These conversions are to be done transparently by the system so without the programmers to be obligated to deal with them explicitly. — willy wonka 15 secs ago

@PeterCordes normal programmers in fact would have to focus on programming and results not on how floating point works to find workaround to its flow. To deal with on how floating point works is a problem that has to be solved once and for all from those that develop systems and memory and hardware and browsers and firmware and gates and CPU or math processors and similar things. — willy wonka 30 secs ago

As I noted in my answer, for steps 1 and 3 you should be using a PDF library, and I specifically mentioned compression as a likely issue. If you are looking for a PDF library recommendation then StackOverflow is the wrong place. You would ask instead here: softwarerecs.stackexchange.com — Ryan just now

that python doesn't work with like linked lists That's a misunderstanding. Any language with half-decent support for OO coding supports any data structure. No language comes with every data structure supported from installation. Ask a handful of programmers to get more than a handful of opinions on any languages merits regarding any non-trivial aspect. While Java looked frugal before 1.2, there are strategic deficiencies in the collection framework I can do without. Like not specifying immutable variants to be the default ones, only retrofitting mutation-prevention wrappers. — greybeard 19 secs ago

Welcome to Stack Overflow! How to ask homework question and Open letter to students with homework problems — Barmar 8 secs ago

Welcome to Stack Overflow.! Open ended and opinion based questions that boil down to subjective responses are generally not a good fit for this site, since there generally is not a single correct answer but a range of opinions based on different approaches. Give a good read over Where to Start, and Minimal Reproducible Example then edit your post. — itprorh66 35 secs ago

I recommend reading How do I ask and answer homework questions? and Open letter to students with homework problems — 0x5453 6 secs ago